CVE-2026-82248 gitoxide before 0.33.0 Path Traversal via symlink following
Attackers can overwrite files outside the worktree on Windows via symlink following during incremental checkouts in Gitoxide.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-82248?
CVE-2026-82248 is a medium-severity path traversal vulnerability in GitoxideLabs gitoxide, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
gix-worktree-state before 0.33.0 (part of gitoxide) allows writing files outside the worktree on Windows. gix_worktree_state::checkout() follows an existing terminal symlink during non-exclusive (incremental) materialization (destination_is_initially_empty: false) when core.symlinks is true. If a symlink entry (mode 120000) is first checked out at a path P pointing outside the worktree, a subsequent incremental checkout of a regular-file entry (mode 100644) at the same path follows the existing reparse point and writes the blob content through the link, overwriting files outside the worktree.
Weakness: CWE-59
Which versions are affected by CVE-2026-82248?
How do I fix CVE-2026-82248?
No fix has been published for CVE-2026-82248 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-82248 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82248 exists.
Sources
Also known as GHSA-pmm9-4h7q-24c8, GHSA-r399-grgc-5vpp, UBUNTU-CVE-2026-82248.