What is CVE-2026-31830?

CVE-2026-31830 is a high-severity vulnerability in Sigstore Sigstore-ruby, classified under CWE-252. CVSS score: 7.5/10. Published 2026-03-10.

How severe is CVE-2026-31830?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Sigstore Sigstore-ruby

CVE-2026-31830

sigstore-ruby is a pure Ruby implementation of the sigstore verify command from the sigstore/cosign project. Prior to 0.2.3, Sigstore::Verifier#verify does not propagate the VerificationFailure returned by verify_in_toto when the artifact…

EPSS: 0.000 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Sigstore Sigstore-ruby — versions < 0.2.3

Weakness classification (CWE)

CWE-252

References

https://github.com/sigstore/sigstore-ruby/security/advisories/GHSA-mhg6-2q2v-9h2c (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-31830?: CVE-2026-31830 is a high-severity vulnerability in Sigstore Sigstore-ruby, classified under CWE-252. CVSS score: 7.5/10. Published 2026-03-10.
How severe is CVE-2026-31830?: High severity. CVSS v3 base score is 7.5 out of 10.