Log Injection Affecting io.jenkins.lib:support-log-formatter package, versions [,1.3.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-IOJENKINSLIB-12878924
- published18 Sept 2025
- disclosed17 Sept 2025
- creditManuel Fernandez
Introduced: 17 Sep 2025
CVE-2025-59476 (opens in a new tab)How to fix?
Upgrade io.jenkins.lib:support-log-formatter to version 1.3.1 or higher.
Overview
io.jenkins.lib:support-log-formatter is a Java logging formatter extracted to a standalone library.
Affected versions of this package are vulnerable to Log Injection in the transformMessage function. An attacker can control log message contents by inserting line break characters (CR, LF) and inject forged log messages into the log output.