{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42880","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-30T18:49:06.711Z","datePublished":"2026-05-07T22:20:39.506Z","dateUpdated":"2026-05-14T03:56:28.920Z"},"containers":{"cna":{"title":"ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction","problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-212","lang":"en","description":"CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3"}],"affected":[{"vendor":"argoproj","product":"argo-cd","versions":[{"version":">= 3.2.0, < 3.2.11","status":"affected"},{"version":">= 3.3.0, < 3.3.9","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-05-07T22:20:39.506Z"},"descriptions":[{"lang":"en","value":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From versions 3.2.0 to before 3.2.11 and 3.3.0 to before 3.3.9, there is a missing authorization and data-masking gap in Argo CD's ServerSideDiff endpoint that allows an attacker with read-only access to extract plaintext Kubernetes Secret data from etcd via the Kubernetes API server's Server-Side Apply dry-run mechanism. This issue has been patched in versions 3.2.11 and 3.3.9."}],"source":{"advisory":"GHSA-3v3m-wc6v-x4x3","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-3v3m-wc6v-x4x3","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-13T00:00:00+00:00","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-42880"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-14T03:56:28.920Z"}}]}}