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.
Product status
2.516.3 (maven) before 2.516.*
2.528 (maven) before *
References
www.jenkins.io/security/advisory/2025-09-17/ (Jenkins Security Advisory 2025-09-17)