{"id":"CVE-2026-40034","aliases":["GHSA-f26g-jm89-4g65"],"url":"https://o3.security/vulnerability/CVE-2026-40034","summary":"gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule","details":"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.","published":"2026-05-26T14:08:48.264Z","modified":"2026-08-12T18:48:21.208888555Z","cvss":null,"epss":{"score":0.00351,"percentile":0.28011,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"gix","fixedVersion":"0.83.0"}],"fix":{"url":"https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0","label":"GitoxideLabs/gitoxide@6a2e6a4"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40034.json"},{"type":"ADVISORY","url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40034"},{"type":"ADVISORY","url":"https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-override-in-gix-submodule"},{"type":"FIX","url":"https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0"},{"type":"FIX","url":"https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T18:48:21.208888555Z"}}