CVE-2023-49291

CRITICAL

tj-actions/branch-names - RCE

Title source: llm
STIX 2.1

Description

tj-actions/branch-names is a Github action to retrieve branch or tag names with support for all events. The `tj-actions/branch-names` GitHub Actions improperly references the `github.event.pull_request.head.ref` and `github.head_ref` context variables within a GitHub Actions `run` step. The head ref variable is the branch name and can be used to execute arbitrary code using a specially crafted branch name. As a result an attacker can use this vulnerability to steal secrets from or abuse `GITHUB_TOKEN` permissions. This vulnerability has been addressed in version 7.0.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Scores

CVSS v3 9.3
EPSS 0.0113
EPSS Percentile 78.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

Details

CWE
CWE-20
Status published
Products (2)
GitHub Actions/tj-actions/branch-names 0 - 7.0.7GitHub Actions
tj-actions/branch-names < 7.0.0
Published Dec 05, 2023
Tracked Since Feb 18, 2026