{"id":"CVE-2026-77524","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-77524","generatedAt":"2026-10-28T03:30:19.137Z","title":"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…","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.","published":"2026-10-14T17:19:11.000Z","lastModified":"2026-10-20T02:17:12.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-269","CWE-918"],"affected":[],"epss":{"score":0.00527,"percentile":0.4435,"date":"2026-10-26","history":[{"date":"2026-10-15","score":0.00635,"percentile":0.49318}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-14T17:19:11.000Z","detail":{"score":"9.9","severity":"CRITICAL","publishedAt":"2026-10-14T17:19:11.147Z"},"summary":"New CVE, critical severity (CVSS 9.9)."}],"references":[{"url":"https://github.com/kedacore/keda/commit/1e21cc798dedd079e696cdb45388eddc5e18365d","source":"security-advisories@github.com"},{"url":"https://github.com/kedacore/keda/releases/tag/v2.21.0","source":"security-advisories@github.com"},{"url":"https://github.com/kedacore/keda/security/advisories/GHSA-637c-6jxx-4rwm","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77524","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}