CVE-2025-29778
MEDIUM severity · CVSS 5.8 · CWE-285
5.8CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredHigh
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/kyverno/kyverno/commit/8777672fb17bdf252bd2e7d8de3441e240404a60 ↗
Additional information
- NVD record
- https://github.com/kyverno/kyverno/commit/8777672fb17bdf252bd2e7d8de3441e240404a60Patch
- https://github.com/kyverno/kyverno/security/advisories/GHSA-46mp-8w32-6g94Advisory
- https://github.com/Mohdcode/kyverno/blob/373f942ea9fa8b63140d0eb0e101b9a5f71033f3/pkg/cosign/cosign.go#L537
- https://github.com/kyverno/kyverno/pull/12237
- https://github.com/kyverno/policies/issues/1246Exploit