VULNERABILITY INTELLIGENCE
CVE-2026-40034
CVSS score7.8 HIGH
EPSS probability0.65%
CISA KEVNot currently listed
Published2026-05-26
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-77