{"cve":"CVE-2024-23903","nvd":{"published":"2024-01-24T18:15:09.653","modified":"2026-06-17T07:13:50.280","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-697"],"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"],"products":["jenkins:github_branch_source"],"source":"nvd","synced_at":"2026-10-19T21:44:57.175229480+00:00"},"epss":{"cve":"CVE-2024-23903","score":0.005,"percentile":0.429,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f67f-2j6r-m4c9","url":"https://osv.dev/vulnerability/GHSA-f67f-2j6r-m4c9","summary":"Non-constant time webhook token comparison in Jenkins GitLab Branch Source Plugin ","modified":"2024-02-16T08:22:15.195882Z","packages":[{"ecosystem":"Maven","name":"io.jenkins.plugins:gitlab-branch-source","purl":"pkg:maven/io.jenkins.plugins/gitlab-branch-source","ranges":["<688.v5fa"],"fixed":["688.v5fa"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}