Detections
Analytics

SCA: security update for sigstore (GHSA-mhg6-2q2v-9h2c)

high Tenable Self-Hosted Container Security Plugin ID 438626

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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 digest does not match the digest in the in-toto attestation subject. As a
 result, verification of DSSE bundles containing in-toto statements returns VerificationSuccess regardless
 of whether the artifact matches the attested subject. This vulnerability is fixed in 0.2.3.
 (CVE-2026-31830)

Solution

Update the sigstore library and its related packages to version 0.2.3 or later.

See Also

https://github.com/advisories/GHSA-mhg6-2q2v-9h2c

Plugin Details

Severity: High

ID: 438626

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 3/11/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2026-31830

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/11/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-31830

cwe: CWE-252