CVE-2026-34243

wenxian: Command Injection in GitHub Actions Workflow via `issue_comment.body`

Published Mar 31, 2026 CVSS 3.1 · 9.8 Critical EPSS 2.2% KEV · Not listed
Description
wenxian is a tool to generate BIBTEX files from given identifiers (DOI, PMID, arXiv ID, or paper title). In versions 0.3.1 and prior, a GitHub Actions workflow uses untrusted user input from issue_comment.body directly inside a shell command, allowing potential command injection and arbitrary code execution on the runner. At time of publication, there are no publicly available patches.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-r4fj-r33x-8v88 wenxian: Command Injection in GitHub Actions Workflow via `issue_comment.body`
History
Type Values Removed Values Added
CPEs cpe:2.3:a:njzjz:wenxian:*:*:*:*:*:python:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Njzjz
Njzjz wenxian
Vendors & Products Njzjz
Njzjz wenxian
Type Values Removed Values Added
Description wenxian is a tool to generate BIBTEX files from given identifiers (DOI, PMID, arXiv ID, or paper title). In versions 0.3.1 and prior, a GitHub Actions workflow uses untrusted user input from issue_comment.body directly inside a shell command, allowing potential command injection and arbitrary code execution on the runner. At time of publication, there are no publicly available patches.
Title wenxian: Command Injection in GitHub Actions Workflow via `issue_comment.body`
Weaknesses CWE-77
CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 2, 2026, 3:21 PM
Reserved
Mar 26, 2026, 4:22 PM
Status
Analyzed
Published
Mar 31, 2026, 4:16 PM
Modified
Jul 24, 2026, 8:10 PM