CVE-2023-49291
Improper Sanitization of Branch Name Leads to Arbitrary Code Injection
- State
- Published
- Severity
- 9.3 Critical
- Published
- Dec 4, 2023
- Updated
- Aug 2, 2024
- Reserved
- Nov 24, 2023
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 | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.3 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N | GitHub_M |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
branch-namestj-actions |
|
References
- https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rf
- https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337
- https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815
- https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060
- https://securitylab.github.com/research/github-actions-untrusted-input
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.