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.
https://www.vulncheck.com/advisories/gitoxide-before-0.33.0-path-traversal-via-symlink-following
https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmm9-4h7q-24c8
Published: 2026-08-28
Updated: 2026-08-31
Base Score: 5.4
Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Severity: Medium
Base Score: 6
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00229