SB2026091640 - Multiple vulnerabilities in Crowd Data Center

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Main Vulnerability Database SB2026091640

SB2026091640 - Multiple vulnerabilities in Crowd Data Center

Published: September 16, 2026

Security Bulletin ID SB2026091640
CSH Severity
High
Patch available
YES
Number of vulnerabilities 13
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 8% Medium 77% Low 15%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 13 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2026-59639)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass CMS signature presence checks.

The vulnerability exists due to improper input validation in CMS verifySignatures when processing SignedData with zero signers. A remote attacker can supply crafted SignedData to bypass CMS signature presence checks.


2) Insufficient verification of data authenticity (CVE-ID: CVE-2026-12802)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to tamper with decrypted data.

The vulnerability exists due to improper authentication tag validation in CMS AuthEnvelopedData decryption when processing encrypted data with an invalid tag length. A remote attacker can supply crafted encrypted content to tamper with decrypted data.


3) Infinite loop (CVE-ID: CVE-2026-67213)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


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

The vulnerability exists due to infinite loop in the customAlphabet and customRandom functions. When these functions are configured with a size of 0, the internal generation loop never satisfies its exit condition and spins indefinitely, hanging the calling thread. A remote attacker can consume all available system resources and cause denial of service conditions.


4) Path traversal (CVE-ID: CVE-2026-73646)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in lib/previous-map.js. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.


5) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-58059)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: 8.7 [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]


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

The vulnerability exists due to uncontrolled resource consumption in X.500 distinguished name stringification when escaping strings with quadratic-time behavior. A remote attacker can supply crafted distinguished names to cause a denial of service.


6) Uncontrolled Memory Allocation (CVE-ID: CVE-2026-14682)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: 8.7 [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]


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

The vulnerability exists due to uncontrolled memory allocation in definite-length read processing when performing an unbounded up-front allocation. A remote attacker can supply crafted input with a large declared length to cause a denial of service.


7) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2026-12816)

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to forge message authentication codes.

The vulnerability exists due to improper cryptographic implementation in IESEngine stream-mode MAC processing when deriving keys through a length-dependent KDF split. A remote attacker can supply crafted input to forge message authentication codes.


8) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2026-12803)

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to forge authenticated ciphertexts across nonces.

The vulnerability exists due to improper cryptographic binding in KCCMBlockCipher MAC processing when AAD is absent. A remote attacker can craft data that exploits the missing nonce binding to forge authenticated ciphertexts across nonces.


9) Uncontrolled Memory Allocation (CVE-ID: CVE-2026-58060)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: 8.7 [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]


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

The vulnerability exists due to uncontrolled memory allocation in HSS public-key verification when processing an unbounded level count. A remote attacker can provide a crafted public key to cause a denial of service.


10) Infinite loop (CVE-ID: CVE-2026-67214)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


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

The vulnerability exists due to infinite loop in the customAlphabet and nanoid functions of its non-secure module (nanoid/non-secure). A remote attacker can consume all available system resources and cause denial of service conditions.


11) CRLF injection (CVE-ID: CVE-2026-12143)

CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.


12) Uncontrolled Recursion (CVE-ID: CVE-2026-13506)

CWE-ID: CWE-674 - Uncontrolled Recursion

CVSSv4: 8.7 [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]


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

The vulnerability exists due to improper state management in the lazy ASN.1 sequence parser when forcing sequence evaluation that resets the nesting-depth guard. A remote attacker can supply crafted ASN.1 data to cause a denial of service.


13) Insufficient verification of data authenticity (CVE-ID: CVE-2026-59642)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to tamper with CMS AuthenticatedData content.

The vulnerability exists due to improper cryptographic binding in CMS AuthenticatedData processing when authAttrs are present. A remote attacker can supply crafted CMS data to tamper with CMS AuthenticatedData content.


Remediation

Install update from vendor's website.

References