{"id":"CVE-2025-59531","state":"PUBLISHED","title":"Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload","description":"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.","publishedAt":"2025-10-01T20:49:35.428Z","updatedAt":"2025-10-02T15:54:24.950Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["argoproj argo-cd"],"affected":[{"vendor":"argoproj","product":"argo-cd","versions":[{"version":">= 1.2.0, <= 1.8.7","status":"affected"},{"version":">= 2.0.0-rc1, < 2.14.20","status":"affected"},{"version":">= 3.2.0-rc1, < 3.2.0-rc2","status":"affected"},{"version":">= 3.1.0-rc1, < 3.1.8","status":"affected"},{"version":">= 3.0.0-rc1, < 3.0.19","status":"affected"}]}],"references":["https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc","https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f"],"weaknesses":["CWE-703"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/59xxx/CVE-2025-59531.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-59531","state":"PUBLISHED","datePublished":"2025-10-01T20:49:35.428Z","dateUpdated":"2025-10-02T15:54:24.950Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-09-17T17:04:20.373Z"},"containers":{"cna":{"title":"Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"argoproj","product":"argo-cd","versions":[{"version":">= 1.2.0, <= 1.8.7","status":"affected"},{"version":">= 2.0.0-rc1, < 2.14.20","status":"affected"},{"version":">= 3.2.0-rc1, < 3.2.0-rc2","status":"affected"},{"version":">= 3.1.0-rc1, < 3.1.8","status":"affected"},{"version":">= 3.0.0-rc1, < 3.0.19","status":"affected"}]}],"references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc","name":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f","name":"https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-703","lang":"en","description":"CWE-703: Improper Check or Handling of Exceptional Conditions","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-10-01T20:49:35.428Z"},"source":{"advisory":"GHSA-f9gq-prrc-hrhc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-02T15:35:32.474779Z","id":"CVE-2025-59531","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-02T15:54:24.950Z"}}]}}}