Description
Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to version 1.14.0-alpha.1, Kyverno ignores subjectRegExp and IssuerRegExp while verifying artifact's sign with keyless mode. It allows the attacker to deploy kubernetes resources with the artifacts that were signed by unexpected certificate. Deploying these unauthorized kubernetes resources can lead to full compromise of kubernetes cluster. Version 1.14.0-alpha.1 contains a patch for the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kyverno | kyverno | < 1.14.0-alpha.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250327T184518-1.1 | openSUSE-SU-2025:14937-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | kyverno-notation-aws +1 | 1.1-r11 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/kyverno/kyverno | >= 1.13.0, < 1.14.0-alpha.1 | 1.14.0-alpha.1 | GHSA-46mp-8w32-6g94 |
| Go | github.com/kyverno/kyverno | < 1.14.0-alpha.1 | 1.14.0-alpha.1 | GO-2025-3562 |
Advisories 1
- openSUSE-SU-2025:14937-1 govulncheck-vulndb-0.0.20250327T184518-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-46mp-8w32-6g94
- https://github.com/kyverno/policies/issues/1246
- https://github.com/kyverno/kyverno/pull/12237
- https://github.com/kyverno/kyverno/commit/8777672fb17bdf252bd2e7d8de3441e240404a60
- https://github.com/Mohdcode/kyverno/blob/373f942ea9fa8b63140d0eb0e101b9a5f71033f3/pkg/cosign/cosign.go#L537