Bug 2396091 (CVE-2025-59476)

Summary: CVE-2025-59476 jenkins: Log message injection vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Jenkins. Improper restriction of characters inserted from user-specified content in log messages allows attackers to control log message content and misled administrators reviewing log output or hide malicious activities.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-09-17 14:01:12 UTC
Jenkins 2.527 and earlier, LTS 2.516.2 and earlier does not restrict or transform the characters that can be inserted from user-specified content in log messages, allowing attackers able to control log message contents to insert line break characters, followed by forged log messages that may mislead administrators reviewing log output.