CVE-2026-44310 — Gitsign is a keyless Sigstore to signing tool for Git

title: Gitsign Verify Commit Success with Empty Certificate Set — CVE-2026-44310
id: scw-2026-05-15-ai-1
status: experimental
level: medium
description: |
  Detects the execution of 'gitsign --verify' command, which is part of the vulnerable code path in Gitsign versions prior to 0.15.0. When exploited, this vulnerability causes a panic that is silently recovered, leading to a successful verification exit code even when the certificate set is empty. This rule specifically targets the command line arguments associated with the vulnerable verification process.
author: SCW Feed Engine (AI-generated)
date: 2026-05-15
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-44310/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: process_creation
detection:
  selection:
      Image|contains:
          - 'gitsign'
      CommandLine|contains:
          - '--verify'
      ParentImage|contains:
          - 'git'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse