Log Message Manipulation Vulnerability in Jenkins by CloudBees
CVE-2025-59476

5.3MEDIUM

Key Information:

Vendor

Jenkins
Status
Jenkins
Vendor
CVE Published:
17 September 2025

What is CVE-2025-59476?

Jenkins versions up to 2.527 and LTS 2.516.2 are susceptible to a vulnerability where the application fails to adequately restrict or sanitize characters in user-defined log messages. This oversight permits attackers to inject line break characters, enabling the creation of forged log entries. As a result, administrators may be misled by the manipulated log outputs during their review processes, potentially leading to unauthorized access or other security issues.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Jenkins 2.516.3

Jenkins 2.516.3 < 2.516.*

Jenkins 2.528

References

https://www.jenkins.io/security/advisory/2025-09-17/#SECU...
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.