high7.8
CVE-2026-40034
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…
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | gix | >= 0.31.0, < 0.83.0 | 0.83.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-f26g-jm89-4g65
- https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65
- https://nvd.nist.gov/vuln/detail/CVE-2026-40034
- https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0
- https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc
- https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP
- https://www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-override-in-gix-submodule