CVE-2026-40034

gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule

State: Published
Severity: 7.3 High
Published: May 26, 2026
Updated: Oct 8, 2026
Reserved: Apr 8, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.3 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	VulnCheck

Weaknesses

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

Affected Products

Product	Versions
gitoxidegitoxide	before 0.5.21Affected 0.5.21Not affected
gix-submodulegitoxide	before 0.29.0Affected 0.29.0Not affected
gixgitoxide	before 0.84.0Affected 0.84.0Not affected

References

GHSA Advisory GHSA-f26g-jm89-4g65vendor-advisory
https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0patch
https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dcpatch
Anthropic CVD Finding ANT-2026-6SNS6KMPthird-party-advisory
VulnCheck Advisory: gitoxide - Command Injection via Partial .gitmodules Override in gix-submodulethird-party-advisory

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