Critical
9.1
Kyverno 1.18.0 before 1.19.2 contains a signature verification bypass in verifyImages because...
CVE-2026-122321
First seen on SecPulse
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| kyverno | kyverno |
≥ 1.18.0, < 1.19.2 |
1.19.2 |
Original description The description as published by the source.
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.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- web disclosure@vulncheck.com
- web disclosure@vulncheck.com
- web nvd.nist.gov
- web github.com