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A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and…

Priority HIGH 75CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.

Why it matters now

EPSS 0.86577 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed org.jenkins-ci.main:jenkins-core (Maven): 2.121.2, 2.132

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—org.jenkins-ci.main:jenkins-core (Maven)before 2.121.22.121.2Patch availableGHSA-qf38-f2fr-q4x9
—org.jenkins-ci.main:jenkins-core (Maven)2.122 to before 2.1322.132Patch availableGHSA-qf38-f2fr-q4x9
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected before 2.121.2 Fixed in 2.121.2 Patch available GHSA-qf38-f2fr-q4x9
  • org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected 2.122 to before 2.132 Fixed in 2.132 Patch available GHSA-qf38-f2fr-q4x9

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:*up to 2.121.1; 2.122 – 2.132VulnerableJenkins
cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*1.9.0VulnerableOracle
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:* Versions up to 2.121.1; 2.122 – 2.132 Vulnerable ·Jenkins
  • cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:* Versions 1.9.0 Vulnerable ·Oracle

Remediation

  • Fix · GHSA-qf38-f2fr-q4x9 org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.121.2 Advisory →
  • Fix · GHSA-qf38-f2fr-q4x9 org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.132 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat OpenShift Enterprise 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1999002
  2. 2026-10-03 Alias added: GHSA-qf38-f2fr-q4x9

References

Sources