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.
Severity
7.3 (High)
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
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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')
Assigner
References
Impacted products
Vendor Product Version
gitoxide gitoxide Affected: 0 , < 0.5.21 (semver)
Unaffected: 0.5.21 (semver)
Create a notification for this product.
gitoxide gix-submodule Affected: 0 , < 0.29.0 (semver)
Unaffected: 0.29.0 (semver)
Create a notification for this product.
gitoxide gix Affected: 0 , < 0.84.0 (semver)
Unaffected: 0.84.0 (semver)
Create a notification for this product.
Date Public
2026-04-25 00:00
Show details on NVD website
To clipboard 

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      "cveMetadata": "{\"cveId\": \"CVE-2026-40034\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-14T20:00:23.349Z\", \"dateReserved\": \"2026-04-08T13:36:56.793Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-05-26T14:08:48.264Z\", \"assignerShortName\": \"VulnCheck\"}",
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}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.