CVE-2025-53637

Meshtastic is an open source mesh networking solution. The main_matrix.yml GitHub Action is triggered by the pull_request_target event, which has extensive permissions, and can be initiated by an attacker who forked the repository and created a pull request. In the shell code execution part, user-controlled input is interpolated unsafely into the code. If this were to be exploited, attackers could inject unauthorized code into the repository. This vulnerability is fixed in 2.6.6.

Score

CVSS 3.1 8.0 High

Status

Analyzed - security-advisories@github.com

Published

2025-07-10

Last modified

2025-07-11

Weaknesses

CWE-78

Affected products

• Firmware (Meshtastic)
• Meshtastic Firmware (Meshtastic)

References

• https://github.com/meshtastic/firmware/blob/3fd47d9713e7d1b6866c48cf218e2435741651a2/.github/workflows/main_matrix.yml#…
• https://github.com/meshtastic/firmware/security/advisories/GHSA-6mwm-v2vv-pp96