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TI-2018-16142 Aliases CVE-2018-1999001GHSA-j8qv-mj4r-6fw4

A unauthorized modification of configuration vulnerability exists in Jenkins 2.132 and…

Priority MEDIUM 56CWE-20Published · Updated

Key facts

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

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

Summary

A unauthorized modification of configuration vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in User.java that allows attackers to provide crafted login credentials that cause Jenkins to move the config.xml file from the Jenkins home directory. If Jenkins is started without this file present, it will revert to the legacy defaults of granting administrator access to anonymous users.

Why it matters now

EPSS 0.18116 97th percentileScored 2026-11-07
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-j8qv-mj4r-6fw4
—org.jenkins-ci.main:jenkins-core (Maven)2.122 to before 2.1322.132Patch availableGHSA-j8qv-mj4r-6fw4
  • — 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-j8qv-mj4r-6fw4
  • org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected 2.122 to before 2.132 Fixed in 2.132 Patch available GHSA-j8qv-mj4r-6fw4

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-j8qv-mj4r-6fw4 org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.121.2 Advisory →
  • Fix · GHSA-j8qv-mj4r-6fw4 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-2018-1999001
  2. 2026-10-03 Alias added: GHSA-j8qv-mj4r-6fw4

References

Patch 1

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences