{"id":"CVE-2025-59531","summary":"Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload","details":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. Without a configured webhook.bitbucketserver.secret, Argo CD's /api/webhook endpoint crashes when receiving a malformed Bitbucket Server payload (non-array repository.links.clone field). A single unauthenticated request triggers CrashLoopBackOff, and targeting all replicas causes complete API outage. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.","aliases":["BIT-argo-cd-2025-59531","GHSA-f9gq-prrc-hrhc","GO-2025-3993"],"modified":"2026-04-10T05:32:06.950867Z","published":"2025-10-01T20:49:35.428Z","related":["SUSE-SU-2025:3799-1","openSUSE-SU-2025:15666-1"],"database_specific":{"cwe_ids":["CWE-703"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59531.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59531.json"},{"type":"ADVISORY","url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59531"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/argoproj/argo-cd","events":[{"introduced":"674978cd587701b39e81fce6d5c960b6d76d5882"},{"last_affected":"eb3d1fb84b9b77cdffd70b14c4f949f1c64a9416"}],"database_specific":{"versions":[{"introduced":"1.2.0"},{"last_affected":"1.8.7"}]}},{"type":"GIT","repo":"https://github.com/argoproj/argo-cd","events":[{"introduced":"0ca643f027b99e8a5b931bb8ee9df42c3e4b64bf"},{"fixed":"879895af786513ae25ba22f36f861cc1afe3b435"}],"database_specific":{"versions":[{"introduced":"2.0.0-rc1"},{"fixed":"2.14.20"}]}},{"type":"GIT","repo":"https://github.com/argoproj/argo-cd","events":[{"introduced":"06ef059f9fc7cf9da2dfaef2a505ee1e3c693485"},{"fixed":"973eccee0af7f3096e7c56b1ba7c9a8601e077c4"}],"database_specific":{"versions":[{"introduced":"3.2.0-rc1"},{"fixed":"3.2.0-rc2"}]}},{"type":"GIT","repo":"https://github.com/argoproj/argo-cd","events":[{"introduced":"320f46f06beaf75f9c406e3a47e2e09d36e2047a"},{"fixed":"becb020064fe9be5381bf6e5818ff8587ca8f377"}],"database_specific":{"versions":[{"introduced":"3.1.0-rc1"},{"fixed":"3.1.8"}]}},{"type":"GIT","repo":"https://github.com/argoproj/argo-cd","events":[{"introduced":"226a670fe6b3c6769ff6d18e6839298a58e4577d"},{"fixed":"132be88e674fbdb222e38f9a15edb5b512904cd9"}],"database_specific":{"versions":[{"introduced":"3.0.0-rc1"},{"fixed":"3.0.19"}]}}],"versions":["v3.0.0","v3.0.0-rc1","v3.0.0-rc2","v3.0.0-rc3","v3.0.0-rc4","v3.0.0-rc5","v3.0.0-rc6","v3.0.1","v3.0.10","v3.0.11","v3.0.12","v3.0.13","v3.0.14","v3.0.15","v3.0.16","v3.0.17","v3.0.18","v3.0.2","v3.0.3","v3.0.4","v3.0.5","v3.0.6","v3.0.7","v3.0.8","v3.0.9","v3.1.0","v3.1.0-rc1","v3.1.0-rc2","v3.1.0-rc3","v3.1.0-rc4","v3.1.1","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.7","v3.2.0-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-59531.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}