CVE-2026-122313Critical· 9.9▾ MidnightKyverno from 1.17.0 before 1.19.2 contains a privilege escalation vulnerability that allows namespace-scoped tenants to modify resources in other namespaces through NamespacedMutatingPolicy targetMatchConstraints.expression CEL output la…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 54.5 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.3%
Kyverno from 1.17.0 before 1.19.2 contains a privilege escalation vulnerability that allows namespace-scoped tenants to modify resources in other namespaces through NamespacedMutatingPolicy targetMatchConstraints.expression CEL output lacking namespace checks. Attackers can emit a literal target such as another tenant's RoleBinding, which the cluster-wide background controller then mutates to add attacker subjects or alter Roles, NetworkPolicies, and ConfigMaps.
kyverno >= 1.17.0 < 1.19.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-122312High· 7.7Kyverno 1.19.1 before 1.19.2 Namespace Isolation Bypass via APICall URLPath Query String
CVE-2026-122302Critical· 9.8Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check
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-2026-122314High· 7.5Kyverno before 1.19.2 Denial of Service via Shallow Variable Substitution Panic
CVE-2026-122318High· 7.7Kyverno before 1.19.2 Cosign Identity Check Bypass via Empty SAN Certificates