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Advisory record · GHSA-6f9g-cxwr-q5jr

Arbitrary file read vulnerability through the Jenkins CLI can lead to RCE

CVSS 9.8 CriticalCriticalIn CISA KEV · ransomwareEPSS 1.00 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 19 Aug 2024: it is known to be exploited.
  • CVSS score 9.8: 9.0 or more.
  • CVSS score 9.8 (7.0 or more) and EPSS 1.00 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 24 Jan 2024, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.jenkins-ci.main:jenkins-coreMaven>=1.606, <2.426.3 || >=2.427, <2.440.1 || >=2.441, <2.4422.426.3, 2.440.1, 2.442
Identifiers
GHSA-6f9g-cxwr-q5jr · BIT-jenkins-2024-23897 · CVE-2024-23897
Weakness (CWE)
CWE-22 · CWE-27
Tags
Published
24 Jan 2024
Updated
7 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Jenkins versions from 1.606 up to 2.426.3, from 2.427 up to 2.440.1, and from 2.441 up to 2.442 are vulnerable through the Jenkins CLI, where an argument starting with @ followed by a file path is replaced by that file's contents. Attackers with Overall/Read permission can read entire files on the controller, and attackers without it can read the first few lines of files, with further impact such as remote code execution possible through keys read from binary files. Upgrade to 2.426.3, 2.440.1, or 2.442 depending on your release line.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H GitHub Advisory Database
  • CISA KEV Listed since 19 Aug 2024: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 1.00, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.