CVE-2026-122321
Kyverno 1.18.0 before 1.19.2 contains a signature verification bypass in verifyImages because cached verification results are keyed by the i
CVSS
9.1
Critical
EPSS
0.2%
p14
KEV
—
Exploit Today
4
0-100
Published: Nov 5, 2026 · Last modified: Nov 5, 2026 · CWE-367
Not enough EPSS history yet.
Kyverno 1.18.0 before 1.19.2 contains a signature verification bypass in verifyImages because cached verification results are keyed by the image reference string (such as a tag) rather than bound to the verified digest, so cache hits skip signature and attestation checks. An attacker who can submit workloads and move a registry tag can warm the cache with a signed image, repoint the tag, and have Kyverno admit the workload and use mutateDigest to pin the unverified digest.