5.3

CVE-2025-59476: jenkins Improper Output Neutralization for Logs

CVSS: 5.3v3.1MediumModified
AliasesCGA-229c-5wxq-h8c3CGA-292r-4wfx-x4j4CGA-2h32-2hjg-89qw
Published 17-09-2025Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2025-59476 is a medium (CVSS 5.3) Improper Output Neutralization for Logs vulnerability in jenkins. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28.5% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 3
CGA-383R-7Q35-J99RCGA-H44G-4MQ8-J7XGCGA-V3Q4-8WHV-FCGV

Timeline

  1. 17-09-2025
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

0.00 pp

From 0.36% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard11 products
  • jenkins-2< 2.528-r0
  • jenkins-2-openjdk-17< 2.528-r0
  • jenkins-2-openjdk-21< 2.528-r0
  • jenkins-2.504-openjdk-17All versions (No fix recorded)
  • jenkins-2.504-openjdk-21All versions (No fix recorded)
Wolfi7 products
  • jenkins-2< 2.528-r0
  • jenkins-2-openjdk-17< 2.528-r0
  • jenkins-2-openjdk-21< 2.528-r0
  • jenkins-compat< 2.528-r0
  • jenkins-docker-agent-openjdk-21< 2.528-r0
Jenkins1 product
Org.jenkins-ci.main1 product
  • jenkins-core< 2.516.3 | ≥ 2.517, < 2.528

4 vendors · 20 products

References

4 links