# CVE-2026-122302: Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check

Status: published. Published: 2026-11-05. Updated: 2026-11-05.

Kyverno before 1.19.2 contains a privilege escalation vulnerability that allows namespace admins to create resources beyond their RBAC because generate-rule admission checks verify the controller's permissions, not the author's. Attackers can create a namespaced Policy with generate rules targeting other namespaces or cluster-scoped kinds, making the background controller create or clone resources cluster-wide.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- kyverno / kyverno (github.com/kyverno/kyverno): ≥ 0; < 1.19.2 (affected, semver); 1.19.2 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 9.3 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-269

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/kyverno/kyverno/security/advisories/GHSA-q62c-r9v2-cf64 (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/kyverno-before-1.19.2-privilege-escalation-via-generate-rule-permission-check (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-122302; retrieved 2026-11-05; source updated 2026-11-05

Revision: 4baad78c3c4b6e20e391a01a5b119762d57e343aad525978cd8897501637e56d

Canonical: https://y2.dev/cve/CVE-2026-122302

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