CVE-2026-40034

HIGH EPSS 27.0%
Published May 26, 20261mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 4.0
High
Find Similar
Published May 26, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.5
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
27.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-77 Command Injection Injection

References 5

  • github.com https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0
  • github.com https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc
  • github.com https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65
  • red.anthropic.com https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP
  • vulncheck.com https://www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-override-in-gix-submodule

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.