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CVE-2026-34243

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-34243
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-03-26 16:22 UTC
Published
2026-03-31 15:49 UTC
Last updated
2026-04-02 15:21 UTC
Primary CWE
CWE-77
CWE-77: Improper Neutralization of Special Elements used in …
Vendor / Product
njzjz / wenxian
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
njzjz wenxian — <= 0.3.1
Weakness (CWE)
CWESourceDescription
CWE-77 cna CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78 cna CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References (1)
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