SB2026072338 - Multiple vulnerabilities in Tenable Security Center

Description

This security bulletin contains information about 52 vulnerabilities.

1) Improper Encoding or Escaping of Output (CVE-ID: CVE-2026-7263)

CWE-ID: CWE-116 - Improper Encoding or Escaping of Output

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause incorrect XML canonicalization output.

The vulnerability exists due to improper handling of namespace declarations in Dom\XMLDocument::C14N() when processing XML after setAttributeNS(). A remote attacker can supply crafted XML content to cause incorrect XML canonicalization output.

2) Stack-based buffer overflow (CVE-ID: CVE-2025-11187)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when parsing PKCS#12 files. A remote attacker can pass a specially crafted PKCS#12 file to the application, trigger a stack-based buffer overflow and perform a denial of service attack. 

3) Command injection (CVE-ID: CVE-2026-64878)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary commands.

The vulnerability exists due to command injection in Security Center when handling requests. A remote user can send a specially crafted request to execute arbitrary commands.

4) Command injection (CVE-ID: CVE-2026-64879)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary commands.

The vulnerability exists due to command injection in Security Center when handling requests. A remote user can send a specially crafted request to execute arbitrary commands.

5) SQL injection (CVE-ID: CVE-2026-64880)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to SQL injection in Security Center when handling requests. A remote user can send a specially crafted request to disclose sensitive information.

The advisory identifies the issue as a blind SQL injection vulnerability.

6) Input validation error (CVE-ID: CVE-2026-64881)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to compromise confidentiality, integrity, and availability.

The vulnerability exists due to improper file validation in Security Center when handling file-related input. A remote user can submit a specially crafted file to compromise confidentiality, integrity, and availability.

7) Double free (CVE-ID: CVE-2026-23918)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber

The vulnerability allows a remote attacker to cause a denial of service and possibly execute arbitrary code.

The vulnerability exists due to a double free in Apache HTTP Server HTTP/2 handling when processing an early reset. A remote attacker can trigger an early reset condition to cause a denial of service and possibly execute arbitrary code.

The issue is specific to the HTTP/2 protocol.

8) Improper access control (CVE-ID: CVE-2026-24072)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper access control in various Apache HTTP Server modules when evaluating ap_expr from .htaccess files. A local user can create a crafted .htaccess expression to disclose sensitive information.

The issue affects local .htaccess authors and allows reading files with the privileges of the httpd user.

9) HTTP response splitting (CVE-ID: CVE-2026-33523)

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to manipulate HTTP responses.

The vulnerability exists due to improper neutralization of CRLF sequences in multiple Apache HTTP Server modules when forwarding a backend status line. A remote attacker can supply a malicious backend response to manipulate HTTP responses.

Exploitation requires an untrusted or compromised backend server.

10) Out-of-bounds read (CVE-ID: CVE-2026-33857)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in mod_proxy_ajp AJP getter functions when parsing AJP data. A remote attacker can send a specially crafted AJP message to disclose sensitive information.

Exploitation requires Apache HTTP Server to connect to an untrusted or compromised AJP backend server.

11) Out-of-bounds read (CVE-ID: CVE-2026-34032)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper null termination leading to an out-of-bounds read in mod_proxy_ajp ajp_msg_get_string when parsing AJP string data. A remote attacker can send a specially crafted AJP message to disclose sensitive information.

Exploitation requires Apache HTTP Server to connect to an untrusted or compromised AJP backend server.

12) Out-of-bounds read (CVE-ID: CVE-2026-34059)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to a heap over-read in mod_proxy_ajp ajp_parse_data() when processing AJP messages from a backend server. A remote attacker can send a specially crafted AJP message to disclose sensitive information.

Exploitation requires Apache HTTP Server to connect to an untrusted or compromised AJP backend server.

13) Stack-based buffer overflow (CVE-ID: CVE-2025-15467)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters. A remote attacker can supply a specially crafted CMS message with an oversized IV, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

14) NULL pointer dereference (CVE-ID: CVE-2026-7259)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in php_mb_check_encoding() when mb_ereg_search_init() processes crafted input. A remote attacker can supply crafted input to cause a denial of service.

15) NULL pointer dereference (CVE-ID: CVE-2025-15468)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the SSL_CIPHER_find() function. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

16) Numeric Truncation Error (CVE-ID: CVE-2025-15469)

CWE-ID: CWE-197 - Numeric Truncation Error

CVSSv4: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to "openssl dgst" one-shot codepath silently truncates inputs larger than 16MB. A remote attacker can spoof contents of the signed message. 

Note, the issue affects only the command-line tool behavior.

17) Resource exhaustion (CVE-ID: CVE-2025-66199)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in CompressedCertificate. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

This issue only affects builds where TLS 1.3 certificate compression is compiled in (i.e., not OPENSSL_NO_COMP_ALG) and at least one compression algorithm (brotli, zlib, or zstd) is available, and where the compression extension is negotiated. Both clients receiving a server CompressedCertificate and servers in mutual TLS scenarios receiving a client CompressedCertificate are affected. 

Servers that do not request client certificates are not vulnerable to client-initiated attacks.

18) Out-of-bounds write (CVE-ID: CVE-2025-68160)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error within the BIO filter (BIO_f_linebuffer). A remote attacker can pass an overly long string to the application, trigger an out-of-bounds write and perform a denial of service attack.

19) Cleartext transmission of sensitive information (CVE-ID: CVE-2025-69418)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the trailing 1-15 bytes of a message may be exposed in cleartext on encryption and are not covered by the authentication tag. When using the low-level OCB API directly with AES-NI or other hardware-accelerated code paths, inputs whose length is not a multiple of 16 bytes can leave the final partial block unencrypted and unauthenticated. A remote attacker can intercept traffic and gain access to potentially sensitive information. 

20) Out-of-bounds write (CVE-ID: CVE-2025-69419)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error within the PKCS12_get_friendlyname() function when parsing PKCS#12 file with a BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point. A remote attacker can pass a specially crafted PKCS#12 file to the application, trigger an out-of-bounds write and perform a denial of service attack.

21) Type Confusion (CVE-ID: CVE-2025-69420)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a type confusion error within the TS_RESP_verify_response() function when handling ASN1_TYPE data.. A remote attacker can pass a malformed TimeStamp Response to the application and perform a denial of service attack.

22) NULL pointer dereference (CVE-ID: CVE-2025-69421)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the PKCS12_item_decrypt_d2i_ex function. A remote attacker can pass a specially crafted PKCS#12 file to the application and perform a denial of service (DoS) attack.

23) NULL pointer dereference (CVE-ID: CVE-2026-22795)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when parsing PKCS#12 file. A remote attacker can pass a specially crafted PKCS#12 file to the application and perform a denial of service (DoS) attack.

24) Type confusion (CVE-ID: CVE-2026-22796)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a type confusion error within the PKCS7_digest_from_attributes() function. A remote attacker can pass specially crafted PKCS#7 data to the application, trigger a type confusion error and perform a denial of service attack.

25) Integer overflow (CVE-ID: CVE-2026-7568)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an integer overflow in char array offset handling when processing crafted input. A remote attacker can supply crafted input to cause a denial of service.

26) Heap-based buffer overflow (CVE-ID: CVE-2026-25589)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to heap-based buffer overflow in the Redis RESTORE command handling within the RedisBloom module when processing a specially crafted serialized payload. A remote user can send a specially crafted serialized payload to execute arbitrary code.

Exploitation requires the RedisBloom module to be loaded and permission to execute the RESTORE command.

27) NULL pointer dereference (CVE-ID: CVE-2026-7262)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper null pointer handling in Apache map value processing when handling SOAP requests. A remote attacker can send a specially crafted SOAP request to cause a denial of service.

Exploitation requires the Apache Map environment.

28) Missing Authorization (CVE-ID: CVE-2026-6472)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary SQL functions in victim queries.

The vulnerability exists due to improper access control in the CREATE TYPE command when creating a multirange type without checking schema CREATE privilege. A remote user can create a crafted type to execute arbitrary SQL functions in victim queries.

The issue can hijack queries that use search_path to find user-defined types, including extension-defined types.

29) Out-of-bounds read (CVE-ID: CVE-2026-6104)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in mbfl_name2encoding_ex() when parsing crafted input. A remote attacker can supply crafted input to cause a denial of service.

30) Integer overflow (CVE-ID: CVE-2026-42371)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause incorrect URI parsing results.

The vulnerability exists due to numeric truncation in text range comparison in uriparser when parsing crafted URI input. A remote attacker can supply crafted URI input to cause incorrect URI parsing results.

31) Cross-site scripting (CVE-ID: CVE-2026-6735)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to execute arbitrary script code in a user's browser.

The vulnerability exists due to cross-site scripting in the FPM status endpoint when handling requests. A remote attacker can send a specially crafted request to execute arbitrary script code in a user's browser.

32) SQL injection (CVE-ID: CVE-2025-14179)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to execute arbitrary SQL commands.

The vulnerability exists due to SQL injection in PDO_Firebird quoted string handling when processing NUL bytes in quoted strings. A remote attacker can supply crafted input containing NUL bytes to execute arbitrary SQL commands.

33) Use-after-free (CVE-ID: CVE-2026-7261)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to use-after-free in SOAP header parsing when a header parsing failure occurs with SOAP_PERSISTENCE_SESSION. A remote attacker can send a specially crafted SOAP request to cause a denial of service.

Exploitation requires SOAP_PERSISTENCE_SESSION.

34) Use-after-free (CVE-ID: CVE-2026-6722)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a stale pointer in SOAP_GLOBAL(ref_map) when processing SOAP requests with Apache Map. A remote attacker can send a specially crafted SOAP request to cause a denial of service.

Exploitation requires the Apache Map environment.

35) Out-of-bounds read (CVE-ID: CVE-2026-2003)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when handling oidvector data type. A remote user can trigger an out-of-bounds read error and read contents of memory on the system.

36) Type confusion (CVE-ID: CVE-2026-2004)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in intarray extension. A remote user can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.

37) Heap-based buffer overflow (CVE-ID: CVE-2026-2005)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in pgcrypto. A remote user can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

38) Buffer overflow (CVE-ID: CVE-2026-2006)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to missing validation of multibyte character length. A remote user can send a specially crafted query to the application, trigger memory corruption and execute arbitrary code on the target system.

39) Integer overflow (CVE-ID: CVE-2026-6473)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to integer overflow in multiple PostgreSQL server features when processing application-supplied input. A remote user can provide crafted input to cause a denial of service.

The integer wraparound can undersize an allocation and lead to an out-of-bounds write that results in a segmentation fault.

40) Type conversion (CVE-ID: CVE-2026-7258)

CWE-ID: CWE-704 - Type conversion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper type handling in ctype.h function calls when processing non-unsigned char values. A remote attacker can supply crafted input to cause a denial of service.

41) Format string error (CVE-ID: CVE-2026-6474)

CWE-ID: CWE-134 - Use of Externally-Controlled Format String

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to an externally-controlled format string in the timeofday() function when processing crafted timezone zones. A remote user can supply a crafted timezone zone to disclose sensitive information.

The issue can expose portions of server memory.

42) Link following (CVE-ID: CVE-2026-6475)

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to overwrite arbitrary local files.

The vulnerability exists due to symlink following in pg_basebackup plain format and pg_rewind when processing files from an origin server. A remote attacker can provide crafted symlinks to overwrite arbitrary local files.

User interaction is required to run pg_basebackup or pg_rewind. The attack has practical implications only if relevant action is taken before the server is started, such as moving files to a different VM or snapshotting the VM.

43) Stack-based buffer overflow (CVE-ID: CVE-2026-6477)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to overwrite client stack memory.

The vulnerability exists due to a stack-based buffer overflow in libpq lo_* functions when processing an arbitrarily large server response through PQfn(..., result_is_int=0, ...). A remote attacker can induce a victim client to process a crafted server response to overwrite client stack memory.

User interaction is required to invoke affected client functionality such as psql \lo_export or pg_dump. The issue affects lo_export(), lo_read(), lo_lseek64(), and lo_tell64().

44) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2026-6478)

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to recover credentials sufficient to authenticate.

The vulnerability exists due to observable timing discrepancies in MD5-hashed password comparison during authentication. A remote attacker can measure authentication timing to recover credentials sufficient to authenticate.

The issue does not affect scram-sha-256 passwords and applies to MD5-hashed passwords that may originate from upgrades from PostgreSQL 13 or earlier.

45) Uncontrolled Recursion (CVE-ID: CVE-2026-6479)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled recursion in SSL and GSS negotiation when initializing connections. A remote attacker can connect to a vulnerable socket to cause a denial of service.

If SSL and GSS are both disabled, exploitation is possible via access to a PostgreSQL TCP socket. Otherwise, the attacker must be able to connect to a PostgreSQL AF_UNIX socket.

46) Stack-based buffer overflow (CVE-ID: CVE-2026-6637)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code as the operating system user running the database.

The vulnerability exists due to a stack-based buffer overflow in the refint module when processing crafted input. A remote user can supply crafted input to execute arbitrary code as the operating system user running the database.

47) SQL injection (CVE-ID: CVE-2026-6638)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary SQL with the subscription's publication-side credentials.

The vulnerability exists due to SQL injection in ALTER SUBSCRIPTION ... REFRESH PUBLICATION when processing a table name. A remote user can create a crafted subscriber table name to execute arbitrary SQL with the subscription's publication-side credentials.

User interaction is required for the next REFRESH PUBLICATION to occur.

48) Use-after-free (CVE-ID: CVE-2026-23479)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to use-after-free in the unblock client flow when a blocked client is evicted while re-executing a blocked command. A remote user can trigger this condition to execute arbitrary code.

The issue occurs because processCommandAndResetClient does not handle an error return value in this flow.

49) Heap-based buffer overflow (CVE-ID: CVE-2026-25243)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to improper input validation in the RESTORE command when processing a specially crafted serialized payload. A remote user can send a specially crafted serialized payload to execute arbitrary code.

Exploitation requires permission to execute the RESTORE command.

50) Use-after-free (CVE-ID: CVE-2026-23631)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to use-after-free in the Lua scripting synchronization mechanism when exploiting master-replica synchronization. A remote user can trigger the flaw through crafted Lua script execution to execute arbitrary code.

Only replicas with replica-read-only disabled are vulnerable.

51) Heap-based buffer overflow (CVE-ID: CVE-2026-25588)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to heap-based buffer overflow in the RedisTimeSeries module when processing serialized values via the RESTORE command. A remote user can send a specially crafted serialized payload to execute arbitrary code.

Exploitation requires the RedisTimeSeries module to be loaded and permission to execute the RESTORE command.

52) SQL injection (CVE-ID: CVE-2026-64877)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary SQL commands.

The vulnerability exists due to SQL injection in Security Center when handling requests. A remote user can send a specially crafted request to execute arbitrary SQL commands.

Remediation

Install update from vendor's website.

References

• https://www.tenable.com/security/tns-2026-19