{"id":"CVE-2025-59538","state":"PUBLISHED","title":"Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook","description":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.","publishedAt":"2025-10-01T21:09:08.870Z","updatedAt":"2025-10-02T15:54:11.490Z","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":">= 2.9.0-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-gpx4-37g2-c8pv","https://github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632baf"],"weaknesses":["CWE-248","CWE-703"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/59xxx/CVE-2025-59538.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-59538","state":"PUBLISHED","datePublished":"2025-10-01T21:09:08.870Z","dateUpdated":"2025-10-02T15:54:11.490Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-09-17T17:04:20.373Z"},"containers":{"cna":{"title":"Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook","descriptions":[{"lang":"en","value":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19."}],"affected":[{"vendor":"argoproj","product":"argo-cd","versions":[{"version":">= 2.9.0-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-gpx4-37g2-c8pv","name":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632baf","name":"https://github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632baf","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-248","lang":"en","description":"CWE-248: Uncaught Exception","type":"CWE"}]},{"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":"2025-10-01T21:09:08.870Z"},"source":{"advisory":"GHSA-gpx4-37g2-c8pv","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pv","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-02T15:32:22.380180Z","id":"CVE-2025-59538","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":"2025-10-02T15:54:11.490Z"}}]}}}