CVE-2026-34243: Njzjz Wenxian

Critical severity, CVSS 9.8. EPSS: 2.8% chance of exploitation in the next 30 days.

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.

Affected products

• Njzjz Wenxian: up to and including 0.3.1

Published 2026-03-31. Last modified 2026-07-24.