BlogPHP2Shell Exploitation: How Secure.com Can Protect YouRead more
← CVE Radar

CVE-2026-114134Black: GitHub Action installs unvalidated required-version from pyproject.toml

Black is the uncompromising Python code formatter. Prior to 26.10.1, the Black GitHub Action with use_pyproject: true accepts tool.black.required-version from pyproject.toml without validating that it is a released Black version specifier. An attacker who can submit a pull request can change that field to a direct reference to attacker-controlled code, causing the workflow to install and execute the code in the victim repository's GitHub Actions context. This issue is fixed in version 26.10.1.

8.7 HIGHEPSS 0.40%Not in KEVNVD: Received

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
8.7HIGH4.0GitHub_M (CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Details

CVE ID
CVE-2026-114134
Status
Received
Assigner (CNA)
GitHub_M
Published
Nov 5, 2026
Last modified
2026-11-05 21:18 UTC
Weaknesses
  • CWE-829 · Inclusion of Functionality from Untrusted Control Sphere

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 07:29 UTC.