PT-2026-83240 · Js Recon · Js-Recon
CVE-2026-55378
·
Published
2026-08-28
·
Updated
2026-09-01
CVSS v4.0
9.3
Critical
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
JS Recon versions 1.2.1-beta.1 through 1.3.1-beta.1
Description
The PR Branch Checker workflow in
.github/workflows/pr checker.yml improperly handles untrusted values. Specifically, the github.head ref and github.event.pull request.head.repo.full name values are assigned to the BRANCH NAME and SOURCE REPO variables and then interpolated into a shell gh pr comment command. A remote attacker can use shell metacharacters within a branch or fork name to execute arbitrary commands on the GitHub Actions runner using the GITHUB TOKEN, which possesses write permissions for pull requests.Recommendations
Update to version 1.3.1-beta.2.
Exploit
Fix
OS Command Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Js-Recon