Security Resilience

CVE-2025-59476

Jenkins ≤ 2.516.3

Published
17 September 2025
Modified
04 November 2025
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0036 29th percentile
Risk Priority 44 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-59476 is a medium-severity Improper Output Neutralization for Logs (CWE-117) vulnerability in Jenkins Jenkins. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Indicator Removal (T1070); ranked at the 29th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A09:2025 Security Logging and Alerting Failures

EU & UK References

Vulnerability Data

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…

more

forged log messages that may mislead administrators reviewing log output.

CWE(s)
CWE-117

Related Threats

MITRE ATT&CK Enterprise Techniques

T1070 Indicator Removal Stealth
Adversaries may selectively delete or modify artifacts generated to reduce indications of their presence and blend in with legitimate activity.
attack.mitre.org →
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-33001Same product: Jenkins Jenkins
CVE-2024-23897Same product: Jenkins Jenkins
CVE-2026-84645Same product: Jenkins Jenkins
CVE-2026-84650Same product: Jenkins Jenkins
CVE-2023-27901Same product: Jenkins Jenkins
CVE-2023-27900Same product: Jenkins Jenkins
CVE-2026-84652Same product: Jenkins Jenkins
CVE-2023-43497Same product: Jenkins Jenkins
CVE-2026-53435Same product: Jenkins Jenkins
CVE-2024-47804Same product: Jenkins Jenkins

Affected Assets

jenkins
jenkins
≤ 2.516.3 · ≤ 2.528

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover missing or incorrect output neutralization when log messages are constructed from untrusted input.

SI-10 Information Input Validation partial match

Input validation reduces the chance that specially crafted data reaches log-message construction routines.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
blocks

Secure SDLC practices and coding standards directly require output sanitization for logs.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect log injection flaws but does not prevent them at the source.

A.8.16 Monitoring activities partial match
finds

Monitoring activities rely on trustworthy logs but do not ensure log message integrity.

A.8.28 Secure coding partial match
prevents

Secure coding practices mandate input validation and output encoding, directly preventing log injection.

References