{"id":"CVE-2026-77524","state":"PUBLISHED","title":"KEDA: Privilege escalation from namespace admin to cluster admin via KEDA TriggerAuthentication","description":"KEDA is a Kubernetes-based Event Driven Autoscaling component. In version 2.20.2 and earlier, a namespace administrator who can create TriggerAuthentication and ScaledObject resources can set hashiCorpVault.address to a tenant-controlled endpoint and select Kubernetes authentication without an explicit credential. KEDA then uses the operator pod's projected ServiceAccount token and sends it to that endpoint as a Vault login credential. The JWT-shape filter from the prior CVE-2025-68476 remediation accepts the operator token because its subject is a Kubernetes ServiceAccount, so the attacker can obtain the operator's cluster-wide permissions, including broad Secret reads and workload or admission-related operations. This vulnerability is fixed in 2.21.0.","publishedAt":"2026-10-14T16:15:15.268Z","updatedAt":"2026-10-20T01:39:03.661Z","severity":{"score":9.9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["kedacore keda"],"affected":[{"vendor":"kedacore","product":"keda","versions":[{"version":"< 2.21.0","status":"affected"}]}],"references":["https://github.com/kedacore/keda/security/advisories/GHSA-637c-6jxx-4rwm","https://github.com/kedacore/keda/commit/1e21cc798dedd079e696cdb45388eddc5e18365d","https://github.com/kedacore/keda/releases/tag/v2.21.0"],"weaknesses":["CWE-269","CWE-918"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77524.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77524","state":"PUBLISHED","datePublished":"2026-10-14T16:15:15.268Z","dateUpdated":"2026-10-20T01:39:03.661Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-20T20:23:02.508Z"},"containers":{"cna":{"title":"KEDA: Privilege escalation from namespace admin to cluster admin via KEDA TriggerAuthentication","descriptions":[{"lang":"en","value":"KEDA is a Kubernetes-based Event Driven Autoscaling component. In version 2.20.2 and earlier, a namespace administrator who can create TriggerAuthentication and ScaledObject resources can set hashiCorpVault.address to a tenant-controlled endpoint and select Kubernetes authentication without an explicit credential. KEDA then uses the operator pod's projected ServiceAccount token and sends it to that endpoint as a Vault login credential. The JWT-shape filter from the prior CVE-2025-68476 remediation accepts the operator token because its subject is a Kubernetes ServiceAccount, so the attacker can obtain the operator's cluster-wide permissions, including broad Secret reads and workload or admission-related operations. This vulnerability is fixed in 2.21.0."}],"affected":[{"vendor":"kedacore","product":"keda","versions":[{"version":"< 2.21.0","status":"affected"}]}],"references":[{"url":"https://github.com/kedacore/keda/security/advisories/GHSA-637c-6jxx-4rwm","name":"https://github.com/kedacore/keda/security/advisories/GHSA-637c-6jxx-4rwm","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/kedacore/keda/commit/1e21cc798dedd079e696cdb45388eddc5e18365d","name":"https://github.com/kedacore/keda/commit/1e21cc798dedd079e696cdb45388eddc5e18365d","tags":["x_refsource_MISC"]},{"url":"https://github.com/kedacore/keda/releases/tag/v2.21.0","name":"https://github.com/kedacore/keda/releases/tag/v2.21.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.9,"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:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269: Improper Privilege Management","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-14T16:15:15.268Z"},"source":{"advisory":"GHSA-637c-6jxx-4rwm","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-20T01:38:54.426268Z","id":"CVE-2026-77524","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-20T01:39:03.661Z"}}]}}}