CVE-2026-34243

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

State
Published
Severity
9.8 Critical
Published
Mar 31, 2026
Updated
Apr 2, 2026
Reserved
Mar 26, 2026

Read the record on cve.org

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

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

ProductVersions
wenxiannjzjz
  • <= 0.3.1Affected

References

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