CVE-2025-59476: Jenkins

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Jenkins Jenkins: before 2.516.3 (fixed in 2.516.3); before 2.528 (fixed in 2.528)

Published 2025-09-17. Last modified 2026-06-17.