GHSA-j5qr-vw59-8jh6HighCVSS 7.7
Kyverno from 1.19.1 before 1.19.2 contains a namespace isolation bypass in APICall Fetch() in pkg...
🔗 CVE IDs covered (1)
📋 Description
Kyverno from 1.19.1 before 1.19.2 contains a namespace isolation bypass in APICall Fetch() in pkg/engine/apicall/apiCall.go because path.Clean treats '?' as a path character, letting the namespace regex match segments inside the query string. Users who can create namespaced policies can supply a URLPath like /api/v1/nodes?x=/namespaces/default/ that passes validation while client-go requests the cluster-scoped endpoint, reading resources outside their namespace.
🔗 References (5)
- https://github.com/kyverno/kyverno/security/advisories/GHSA-pcx2-xcq4-65vf
- https://nvd.nist.gov/vuln/detail/CVE-2026-122312
- https://github.com/kyverno/kyverno/commit/f67231def576eb0ad153dd8cbfc836908ab14c14
- https://www.vulncheck.com/advisories/kyverno-1.19.1-before-1.19.2-namespace-isolation-bypass-via-apicall-urlpath-query-string
- https://github.com/advisories/GHSA-j5qr-vw59-8jh6