CVE-2026-122321Critical· 9.1▾ MidnightKyverno 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 ski…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0 · exploitation 0
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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.
kyverno >= 1.18.0 < 1.19.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-122323High· 7.5Kyverno 1.11.0 before 1.19.2 Memory Exhaustion via Notary Signature Decompression
CVE-2026-122319High· 7.5Kyverno before 1.19.2 Denial of Service via In/NotIn Operator Panic
CVE-2026-122318High· 7.7Kyverno before 1.19.2 Cosign Identity Check Bypass via Empty SAN Certificates
CVE-2026-122314High· 7.5Kyverno before 1.19.2 Denial of Service via Shallow Variable Substitution Panic
CVE-2026-122316High· 8.5Kyverno 1.17.0 before 1.19.2 Cross-Namespace Write via NamespacedMutatingPolicy mutateExisting
CVE-2026-122322High· 7.5Kyverno from 1.11.0 before 1.19.2 Memory Exhaustion via Notary Attestation Decompression