CVE-2026-55158

Conflibot (a GitHub Action that warns about merge conflicts among open pull requests) is vulnerable to command injection via crafted pull request branch names. Prior to version 1.2.1, src/index.ts interpolates the attacker-controlled head.ref value into shell strings passed to exec, allowing an a...

CVE-2026-55158 Conflibot: Command injection via crafted pull request branch names under pull_request_target

Conflibot warns in advance when merging a pull request will cause conflicts in other open pull requests. Prior to 1.2.1, src/index.ts builds git checkout, git merge, and git format-patch commands by interpolating the attacker-controlled pull request head.ref value into strings passed to exec. In...

GHSA-2QVG-QR73-MQXP conflibot vulnerable to command injection via crafted pull request branch names under pull_request_target

Impact Versions of conflibot before 1.2.1 build git commands by string interpolation and run them through a shell. Several of the interpolated values are pull request branch names head.ref, which are attacker-controlled: anyone can open a pull request including from a fork whose head branch name...

conflibot vulnerable to command injection via crafted pull request branch names under pull_request_target

Impact Versions of conflibot before 1.2.1 build git commands by string interpolation and run them through a shell. Several of the interpolated values are pull request branch names head.ref, which are attacker-controlled: anyone can open a pull request including from a fork whose head branch name...

PT-2026-76719

Impact Versions of conflibot before 1.2.1 build git commands by string interpolation and run them through a shell. Several of the interpolated values are pull request branch names head.ref, which are attacker-controlled: anyone can open a pull request including from a fork whose head branch name...