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TI-2024-15891 Aliases CVE-2024-23903GHSA-f67f-2j6r-m4c9

Incorrect comparison in Jenkins GitLab Branch Source Plugin

Priority LOW 31CWE-697Published · Updated

Key facts

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

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

Summary

Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.005 43rd percentileScored 2026-11-07
Fix Fixed io.jenkins.plugins:gitlab-branch-source (Maven): 688.v5fa

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins GitLab Branch Source Pluginup to 684.vea_fa_7c1e2fe3—No fix listedCNA
—io.jenkins.plugins:gitlab-branch-source (Maven)before 688.v5fa688.v5faPatch availableGHSA-f67f-2j6r-m4c9
  • Jenkins GitLab Branch Source Plugin VendorJenkins Affected up to 684.vea_fa_7c1e2fe3 Fixed in — No fix listed CNA
  • io.jenkins.plugins:gitlab-branch-source (Maven) Vendor— Affected before 688.v5fa Fixed in 688.v5fa Patch available GHSA-f67f-2j6r-m4c9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:*up to 684.vea_fa_7c1e2fe3VulnerableJenkins
  • cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:* Versions up to 684.vea_fa_7c1e2fe3 Vulnerable ·Jenkins

Remediation

  • Fix · GHSA-f67f-2j6r-m4c9 io.jenkins.plugins:gitlab-branch-source (Maven) Fixed in 688.v5fa Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Jenkins GitLab Branch Source Plugin — Jenkins Security Advisory 2024-01-24

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2024-15889 Information disclosure in Jenkins GitLab Branch Source PluginPriority LOW 35
    • TI-2024-15890 Cross-site request forgery in Jenkins GitLab Branch Source PluginPriority LOW 20
    Show all 3 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-23903
  2. 2026-10-03 Alias added: GHSA-f67f-2j6r-m4c9

References

Advisory 2

Other 3

  • TI-2024-15889 Information disclosure in Jenkins GitLab Branch Source Plugin CVSS 3.1MEDIUM 6.5
  • TI-2017-14428 GitHub Branch Source Plugin connects to a user-specified GitHub API URL (e.g. CVSS 3.0MEDIUM 6.3
  • TI-2018-15834 A server-side request forgery vulnerability exists in Jenkins GitHub Branch Source Plugin… CVSS 3.0MEDIUM 4.3
  • TI-2017-14424 GitHub Branch Source provides a list of applicable credential IDs to allow users… CVSS 3.0MEDIUM 4.3
  • TI-2026-41222 Missing authorization in Jenkins GitHub Branch Source Plugin CVSS 3.1MEDIUM 4.3
  • TI-2024-15890 Cross-site request forgery in Jenkins GitLab Branch Source Plugin CVSS 3.1MEDIUM 4.3
See all 7 →

Sources

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