Medium severity · published Sep 17, 2025
CVE-2025-59476
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…
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JE
Jenkins · Jenkins
before 2.516.3; before 2.528 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59476
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59476
Vendor Advisory
https://www.jenkins.io/security/advisory/2025-09-17/#SECURITY-3424
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/09/17/1
More from Jenkins
9.9
CVE-2019-1003029
Jenkins Script Security Plugin Sandbox Bypass Vulnerability
9.9
CVE-2019-1003030
Jenkins Matrix Project Plugin Remote Code Execution Vulnerability
9.8
CVE-2024-23897
Jenkins Command Line Interface (CLI) Path Traversal Vulnerability
9.8
CVE-2018-1000861
A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in…
9.8
CVE-2017-1000353
Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution