CVE-2026-34243 is a critical command injection vulnerability (CVSS 9.8) affecting wenxian versions 0.3.1 and prior. This flaw allows arbitrary code execution on GitHub Actions runners by directly using untrusted user input from issue_comment.body within a shell command. The vulnerability has a network attack vector and low attack complexity, posing a high risk to confidentiality, integrity, and availability. There are no publicly available patches or exploit code at this time, and it is not listed on the CISA KEV catalog as actively exploited. However, the vulnerability has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.3.1CPE matchmatch criteria | cpe:2.3:a:njzjz:wenxian:*:*:*:*:*:python:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.