Vulnerability · Published Nov 5, 2026 · Assigned by VulnCheck

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

Critical 9.8

In plain English

A critical-severity privilege mismanagement in kyverno from kyverno. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.3%top 78.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
kyverno	kyverno	0 – before 1.19.2

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-q62c-r9v2-cf64) vendor-advisory
VulnCheck Advisory: Kyverno before 1.19.2 Privilege Escalation via Generate Rule Permission Check third-party-advisory