SB20261107247 - Multiple vulnerabilities in Oracle Middleware Common Libraries and Tools

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Main Vulnerability Database SB20261107247

SB20261107247 - Multiple vulnerabilities in Oracle Middleware Common Libraries and Tools

Published: November 7, 2026

Security Bulletin ID SB20261107247
CSH Severity
High
Patch available
YES
Number of vulnerabilities 8
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 25% Medium 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 8 vulnerabilities.


1) Path traversal (CVE-ID: CVE-2026-22737)

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

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


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper path limitation in script view templates when rendering views with Java scripting engine enabled and the view name is not explicitly specified. A remote attacker can send a specially crafted request to disclose sensitive information.

Exploitation requires a mapping for "/**" that results in view rendering.


2) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-42404)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 6.9 [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]


The vulnerability allows a remote attacker to access internal network resources.

The vulnerability exists due to improper input validation in the PolicyReference API when fetching remote policy references from user-supplied URIs. A remote attacker can supply a crafted URI to access internal network resources.

Exploitation requires an application to explicitly call the API to retrieve a policy from a remote URI.


3) Covert Timing Channel (CVE-ID: CVE-2026-5598)

CWE-ID: CWE-385 - Covert Timing Channel

CVSSv4: 6.9 [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]


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to a covert timing channel in FrodoEngine.java in the BC-JAVA core modules when performing cryptographic operations. A remote attacker can measure timing differences to disclose sensitive information.


4) Improper Encoding or Escaping of Output (CVE-ID: CVE-2026-34480)

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

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause log event loss.

The vulnerability exists due to improper output neutralization in XmlLayout when processing log messages or MDC values containing XML 1.0 forbidden characters. A remote attacker can supply crafted input containing forbidden characters to cause log event loss.

The impact depends on the StAX implementation in use: built-in JRE StAX may produce malformed XML that downstream parsers reject, while alternative implementations may throw an exception during the logging call so the event is delivered only to Log4j's internal status logger.


5) Memory leak (CVE-ID: CVE-2026-1605)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

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 perform DoS attack on the target system.

The vulnerability exists due memory leak within the GzipHandler component when parsing HTTP requests. A remote attacker can send specially crafted HTTP requests to the application, force it to leak memory and perform denial of service attack.


6) Improper Encoding or Escaping of Output (CVE-ID: CVE-2026-34481)

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

CVSSv4: 6.9 [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]


The vulnerability allows a remote attacker to cause downstream log processing systems to reject or fail to index affected records.

The vulnerability exists due to improper serialization of non-finite floating-point values in JsonTemplateLayout when processing log events containing a MapMessage with an attacker-controlled floating-point value. A remote attacker can supply a non-finite floating-point value to cause downstream log processing systems to reject or fail to index affected records.

Exploitation is possible only if the application uses JsonTemplateLayout and logs a MapMessage containing the attacker-controlled value.


7) Path traversal (CVE-ID: CVE-2025-67030)

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

CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to write arbitrary files.

The vulnerability exists due to path traversal in the extractFile function when extracting archive entries with traversal sequences or absolute paths. A remote attacker can supply a specially crafted archive to write arbitrary files.

If a written file is later used as an executable or configuration file, this may lead to code execution in the context of the current working user.


8) Deserialization of Untrusted Data (CVE-ID: CVE-2026-41409)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: 9.3 [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]


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to deserialization of untrusted data in AbstractIoBuffer.getObject() when deserializing untrusted objects. A remote attacker can supply a crafted serialized object to execute arbitrary code.

Only applications that call IoBuffer.getObject() are affected.


Remediation

Install update from vendor's website.

References