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CVE-2026-40034 (GCVE-0-2026-40034)

Vulnerability from cvelistv5 – Published: 2026-05-26 14:08 – Updated: 2026-07-14 20:00
VLAI
Title
gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule
Summary
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.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 15:00 UTC
CWE
  • CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Impacted products
Vendor Product Version CPE status
gitoxide gitoxide Affected: 0 , < 0.5.21 (semver)
Unaffected: 0.5.21 (semver)
guessed Create a notification for this product.
gitoxide gix-submodule Affected: 0 , < 0.29.0 (semver)
Unaffected: 0.29.0 (semver)
guessed Create a notification for this product.
gitoxide gix Affected: 0 , < 0.84.0 (semver)
Unaffected: 0.84.0 (semver)
guessed Create a notification for this product.
Date Public
2026-04-25 00:00
Show details on NVD website

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              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-77",
                  "description": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-14T20:00:23.349Z",
            "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
            "shortName": "VulnCheck"
          },
          "references": [
            {
              "name": "GHSA Advisory GHSA-f26g-jm89-4g65",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-f26g-jm89-4g65"
            },
            {
              "name": "https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GitoxideLabs/gitoxide/commit/6a2e6a436f76c8bbf2487f9967413a51356667a0"
            },
            {
              "name": "https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GitoxideLabs/gitoxide/commit/dd5c18d9e526e8de462fa40aa047acd097cfa7dc"
            },
            {
              "name": "Anthropic CVD Finding ANT-2026-6SNS6KMP",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP"
            },
            {
              "name": "VulnCheck Advisory: gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://www.vulncheck.com/advisories/gitoxide-command-injection-via-partial-gitmodules-override-in-gix-submodule"
            }
          ],
          "title": "gitoxide - Command Injection via Partial .gitmodules Override in gix-submodule",
          "x_generator": {
            "engine": "vulncheck"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "assignerShortName": "VulnCheck",
        "cveId": "CVE-2026-40034",
        "datePublished": "2026-05-26T14:08:48.264Z",
        "dateReserved": "2026-04-08T13:36:56.793Z",
        "dateUpdated": "2026-07-14T20:00:23.349Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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