CVE-2026-122323High· 7.5▾ TwilightKyverno from 1.11.0 before 1.19.2 contains an unbounded decompression vulnerability in FetchSignatureBlob that allows attackers to exhaust memory by supplying highly compressed notary signature layers. Attackers who control registry refe…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0 · exploitation 0
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Kyverno from 1.11.0 before 1.19.2 contains an unbounded decompression vulnerability in FetchSignatureBlob that allows attackers to exhaust memory by supplying highly compressed notary signature layers. Attackers who control registry referrers or signatures can publish small gzip layers that decompress beyond maxPayloadSize, causing admission controller OOM kills and denial of service.
kyverno >= 1.11.0 < 1.19.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-122322High· 7.5Kyverno from 1.11.0 before 1.19.2 Memory Exhaustion via Notary Attestation Decompression
CVE-2026-122319High· 7.5Kyverno before 1.19.2 Denial of Service via In/NotIn Operator Panic
CVE-2026-122321Critical· 9.1Kyverno 1.18.0 before 1.19.2 verifyImages Cache Signature Verification Bypass
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