CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2022-35930
High (8.8) in sigstore policy controller. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in github.com/sigstore/policy-controller 0.2.1.
PolicyController is a utility used to enforce supply chain policy in Kubernetes clusters. In versions prior to 0.2.1 PolicyController will report a false positive, resulting in an admission when it should not be admitted when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to "custom"). An example image that can be used to test this is `ghcr.io/distroless/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2`. Users should upgrade to version 0.2.1 to resolve this issue. There are no workarounds for users unable to upgrade.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Affected
- sigstore:policy_controller
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-739f-hw6h-7wq8 | Go | github.com/sigstore/policy-controller | <0.2.1 | 0.2.1 |
| GO-2022-0759 | Go | github.com/sigstore/policy-controller | <0.2.1 | 0.2.1 |
References
- https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
- https://github.com/sigstore/policy-controller/releases/tag/v0.2.1
- https://github.com/sigstore/policy-controller/security/advisories/GHSA-739f-hw6h-7wq8
- https://github.com/sigstore/policy-controller/commit/e852af36fb7d42678b21d7e97503c25bd1fd05c8
- https://github.com/sigstore/policy-controller/releases/tag/v0.2.1