CVSS 3.1
7.7 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HCVE-2026-41485
High (7.7) in kyverno kyverno. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/kyverno/kyverno 1.16.4, 1.17.2.
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.17.2 and 1.16.4, an unchecked type assertion in the `forEach` mutation handler allows any user with permission to create a `Policy` or `ClusterPolicy` to crash the cluster-wide background controller into a persistent CrashLoopBackOff. The same bug also causes the admission controller to drop connections and block all matching resource operations. The crash loop persists until the policy is deleted. The vulnerability is confined to the legacy engine, and CEL-based policies are unaffected. Versions 1.17.2 and 1.16.4 fix the issue.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
- CWE
- CWE-617
- Published
- Modified
- Record from
- the NVD, synced
Affected
- kyverno:kyverno
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fpjq-c37h-cqcv | Go | github.com/kyverno/kyverno | >=1.13.0 <1.16.4 | 1.16.4 |
| GHSA-fpjq-c37h-cqcv | Go | github.com/kyverno/kyverno | >=1.17.0-rc.1 <1.17.2 | 1.17.2 |
| GO-2026-5374 | Go | github.com/kyverno/kyverno | >=1.13.0 <1.16.4 >=1.17.0-rc.1 <1.17.2 | 1.16.4, 1.17.2 |
References
- https://github.com/kyverno/kyverno/commit/76c8fdbe87328722e099e1fd44c3f21c9f7809cb
- https://github.com/kyverno/kyverno/commit/80e728c2283a0c65e5adb02d8a907106e6ebe7e3
- https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv
- https://github.com/kyverno/kyverno/security/advisories/GHSA-fpjq-c37h-cqcv