EUVD-2026-67700
GHSA-r399-grgc-5vpp
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-delivered via malicious repo; high complexity due to multi-condition prerequisites; no auth needed to publish repo; user must initiate checkout; scope changes as writes land outside worktree boundary.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Arbitrary file write outside the worktree boundary in gix-worktree-state (part of gitoxide) before 0.33.0 on Windows enables an attacker-controlled repository to overwrite files at arbitrary paths on a victim's filesystem. The flaw manifests when gix_worktree_state::checkout() performs an incremental materialization: a malicious repo first places a symlink entry at path P pointing outside the worktree, then a subsequent incremental checkout of a regular-file entry at the same path follows the Windows reparse point and writes attacker-supplied blob content through the link. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires all of the following conditions to be simultaneously true: the victim must be running gitoxide (gix-worktree-state) on Windows; core.symlinks must be set to true (non-default on Windows, must be explicitly configured); the checkout must be incremental rather than a fresh materialization (destination_is_initially_empty: false); and the victim must clone or check out an attacker-controlled repository containing the crafted two-phase symlink/regular-file entry sequence at the same path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:H/AT:P/PR:N/UI:P, score 6.0) accurately reflects the multi-condition nature of exploitation: network-delivered payload requires high attack complexity, a specific prerequisite configuration (AT:P - core.symlinks=true on Windows), and passive user interaction (the victim must perform a checkout of a malicious repository). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade gix-worktree-state (and the containing gitoxide crate) to version 0.33.0 or later, as documented in the vendor advisory at https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmm9-4h7q-24c8. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Denial-of-service in gitoxide's gix-pack crate before 0.69.0 exposes Rust Git clients to remote process crashes during c
Path traversal and trust inheritance flaws in gitoxide's Rust crates gix (≤ 0.72.0) and gix-validate (≤ 0.10.0) allow an
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Path traversal in gitoxide before 0.52.1 and gix before 0.83.0 allows an attacker who supplies a malicious git repositor
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Same weakness CWE-59 – Improper Link Resolution Before File Access
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External POC / Exploit Code
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