Arbitrary Command Injection Affecting rust-gix-submodule package, versions <0.30.0-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.65% (50th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIANUNSTABLE-RUSTGIXSUBMODULE-17872879
  • published7 Jul 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-40034  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Debian:unstable rust-gix-submodule to version 0.30.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-gix-submodule package and not the rust-gix-submodule package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

gix-submodule before 0.29.0 (gitoxide before 0.5.21, gix before 0.84.0) incorrectly validates the update field in .gitmodules, allowing attackers to bypass the CommandForbiddenInModulesConfiguration guard when a submodule has been initialized with only partial configuration in .git/config. An attacker can inject arbitrary shell commands via the update field in .gitmodules that will be executed when Submodule::update() is called on a previously-initialized submodule, enabling remote code execution.

CVSS Base Scores

version 3.1