{"id":"CVE-2024-23903","aliases":["EUVD-2024-0341","GHSA-f67f-2j6r-m4c9"],"status":"published","title":"Non-constant time webhook token comparison in Jenkins GitLab Branch Source Plugin","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.005,"percentile":0.43173,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-697"],"published":"2024-01-24T17:52:26Z","modified":"2026-06-17T07:13:50Z","fixes":[{"ecosystem":"Maven","package":"io.jenkins.plugins:gitlab-branch-source","fixed_in":["688.v5fa"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"io.jenkins.plugins:gitlab-branch-source","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"688.v5fa"}]}]},{"source":"osv","ecosystem":"Maven","package":"io.jenkins.plugins:gitlab-branch-source","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"688.v5fa"}]}],"versions":["0.0.5-alpha-2","0.0.7-beta","0.0.8-beta","1.0.0","1.1.0","1.1.1-alpha","1.1.2-alpha","1.2.0","1.2.1","1.2.2","1.3.0","1.4.0","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.5.0","1.5.1","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","1.5.7","1.5.8","1.5.9","621.vd49608f876da_","623.vcc98dc4b_0ce4","625.v85cf3a_400cfe","628.ve99e3d4df4b_8","629.vb_cc76608e806","630.v04ca_c57fa_880","633.ved9984f943da_","636.v55fd8144d335","640.v7101b_1c0def9","642.v9ed86b_b_54384","643.vdc12a_4a_06434","644.va_a_66886e07b_5","645.v62a_b_6fce8659","646.vb_9560d64b_69f","647.vdee7766b_cfa_e","649.v0dda_db_88b_5ee","650.va_d1ce6d01959","659.va_685a_51fda_db_","660.vd45c0f4c0042","663.v2602c3e6376d","664.v877fdc293c89","670.vf7df45517001","671.v67b_7169092ca_","672.vd8b_0b_b_a_db_1b_3","677.v0b_63b_038322b_","679.v1dfd3604d46e","680.vc179a_1a_37915","684.vea_fa_7c1e2fe3"]}],"products":[{"vendor":"jenkins","product":"github_branch_source"},{"vendor":"jenkins project","product":"jenkins gitlab branch source plugin"}],"references":[{"url":"https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871","tags":["vendor-advisory","x_transferred","Vendor Advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2024/01/24/6","tags":["x_transferred","Mailing List","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23903","tags":["advisory"]},{"url":"https://github.com/jenkinsci/gitlab-branch-source-plugin/commit/8bfe1046cf342b99419457b9336addbbf346f89a","tags":["web"]},{"url":"https://github.com/advisories/GHSA-f67f-2j6r-m4c9"},{"url":"https://github.com/jenkinsci/gitlab-branch-source-plugin","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-23903","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.","status":"published","published":"2024-01-24T17:52:26.696Z","modified":"2025-02-13T17:39:59.383Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:34:05.444281Z"}],"euvd":[{"id":"EUVD-2024-0341","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.","status":"published","published":"2024-01-24T17:52:26Z","modified":"2025-02-13T17:39:59Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:03:47.088299Z"}],"ghsa":[{"id":"GHSA-f67f-2j6r-m4c9","title":"Non-constant time webhook token comparison in Jenkins GitLab Branch Source Plugin ","description":"Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook token are equal.\n\nThis could potentially allow attackers to use statistical methods to obtain a valid webhook token.\n\nGitLab Branch Source Plugin 688.v5fa_356ee8520 uses a constant-time comparison function when validating the webhook token.","status":"published","published":"2024-01-24T18:31:02Z","modified":"2024-01-31T20:24:56Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:37:34.405364Z"}],"nvd":[{"id":"CVE-2024-23903","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.","status":"published","published":"2024-01-24T18:15:09.653Z","modified":"2026-06-17T07:13:50.28Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:09:32.147098Z"}],"osv":[{"id":"GHSA-f67f-2j6r-m4c9","title":"Non-constant time webhook token comparison in Jenkins GitLab Branch Source Plugin ","description":"Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook token are equal.\n\nThis could potentially allow attackers to use statistical methods to obtain a valid webhook token.\n\nGitLab Branch Source Plugin 688.v5fa_356ee8520 uses a constant-time comparison function when validating the webhook token.","status":"published","published":"2024-01-24T18:31:02Z","modified":"2024-02-16T08:22:15.195882Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T15:46:46.006631Z"}]}}