CVE-2026-40034CWE-77command-injection

CVE-2026-40034

High · published May 26, 2026

CVSS v3.1
7.8
EPSS
1%
Percentile
50.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00651 · 50.6th percentile
Weakness
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-05-26T19:16Z
References (6)
https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0 · [email protected]https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc · [email protected]https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65 · [email protected]https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP · [email protected]https://www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-override-in-gix-submodule · [email protected]https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 26 MAY 14:08Z
    gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule
    cvelistv5