What’s Vulnerable › Vulnerabilities

CVE-2024-23903

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-24 · updated 2026-06-17
• Weakness: CWE-697

Description

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.

Affected products

• Jenkins Project Jenkins GitLab Branch Source Plugin: through 684.vea_fa_7c1e2fe3

References

• http://www.openwall.com/lists/oss-security/2024/01/24/6
• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871
• http://www.openwall.com/lists/oss-security/2024/01/24/6
• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871

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