CyberRota Analysis
AI-GeneratedThe Meshtastic GitHub repository is vulnerable due to a flaw in its main_matrix.yml workflow, which allows pull requests from external contributors to execute attacker-controlled code with elevated permissions, including access to repository secrets. This critical vulnerability could lead to supply chain compromises, self-hosted runner exploitation, or complete repository takeover. Organizations using Meshtastic or relying on its GitHub repository should prioritize updating to version 2.7.21.1370b23 to mitigate these risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Meshtastic is an open source mesh networking solution. Prior to version 2.7.21.1370b23, the Meshtastic GitHub repository's main_matrix.yml workflow is triggered by pull_request_target and multiple jobs check out the attacker's fork code and execute it with access to repository secrets and elevated GITHUB_TOKEN permissions. No approval gate exists. Pull requests from external users with author_association: "NONE" triggered the CI workflow automatically. The workflow directly executes attacker-controlled files from the fork checkout. This issue could have resulted in supply chain compromise, self-hosted runner compromise, and/or repository takeover for the repo. This issue is separate from GHSA-6mwm-v2vv-pp96, which addressed a command injection via github.head_ref in the setup job of the same workflow. That fix correctly moved to environment variables. However, the more critical fork checkout vulnerability across the check, build, and build-debian-src jobs was not addressed. Version 2.7.21.1370b23 contains a patch for thie issue.