CVE-2026-34243

CRITICAL

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

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 9.8
EPSS 0.0007
EPSS Percentile 21.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-77 CWE-78
Status published
Products (3)
GitHub Actions/njzjz/wenxian 0GitHub Actions
njzjz/wenxian < 0.3.1
njzjz/wenxian <= 0.3.1
Published Mar 31, 2026
Tracked Since Mar 31, 2026