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SCA: security update for github.com/sigstore/gitsign (GHSA-7c37-gx6w-8vc5)

medium Tenable Self-Hosted Container Security Plugin ID 441524

Description

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

 - Gitsign is a keyless Sigstore to signing tool for Git commits with your a GitHub / OIDC identity. From
 0.4.0 to before 0.15.0, CertVerifier.Verify() in pkg/git/verifier.go unconditionally dereferences certs[0]
 after sd.GetCertificates() without checking the slice length. A CMS/PKCS7 signed message with an empty
 certificate set is a structurally valid DER payload; GetCertificates() returns an empty slice with no
 error, causing an immediate index-out-of-range panic. On the gitsign --verify code path (the GPG-
 compatible mode invoked by git verify-commit), the panic is silently recovered by internal/io/streams.go's
 Wrap() function, which returns nil instead of an error. main.go then exits with code 0, causing exit-code-
 only verification callers to interpret the failed verification as success. This vulnerability is fixed in
 0.15.0. (CVE-2026-44310)

Solution

Update the github.com/sigstore/gitsign library and its related packages to version 0.15.0 or later.

See Also

https://github.com/advisories/GHSA-7c37-gx6w-8vc5

Plugin Details

Severity: Medium

ID: 441524

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/8/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.69

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-44310

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2026

Vulnerability Publication Date: 5/8/2026

Reference Information

CVE: CVE-2026-44310