Is CVE-2026-100419 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-100419 being exploited in the wild.

How severe is CVE-2026-100419?

High severity, with a CVSS score of 7, published 25 September 2026.

Which products and versions are affected?

GitoxideLabs Gix-Fs before 0.23.0.

Is there a fix for CVE-2026-100419?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-100419 attacked?

It is attacked over the network.

Am I affected by CVE-2026-100419?

Check whether you run GitoxideLabs Gix-Fs at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-100419: gitoxide gix-fs path validation bypass in worktree checkout

CVE-2026-100419 · Severity: high · CVSS 7 · Published 2026-09-25

gitoxide is a Rust implementation of Git used in version control workflows. A flaw in its worktree checkout mechanism allows attackers to write files outside the intended directory via symlink manipulation, potentially leading to arbitrary code execution when repositories are checked out with forced overwrite enabled.

Vendors: GitoxideLabs.

Quick answers

Is CVE-2026-100419 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-100419 being exploited in the wild.
How severe is CVE-2026-100419?: High severity, with a CVSS score of 7, published 25 September 2026.
Which products and versions are affected?: GitoxideLabs Gix-Fs before 0.23.0.
Is there a fix for CVE-2026-100419?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-100419 attacked?: It is attacked over the network.
Am I affected by CVE-2026-100419?: Check whether you run GitoxideLabs Gix-Fs at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The gix-fs library contains a path validation bypass in the worktree checkout logic that fails to properly handle symlinks during forced checkout with overwrite_existing enabled. An attacker can craft a malicious repository tree where symlink entries replace previously validated directories, causing subsequent file writes to follow the symlink and escape the worktree boundary. This allows arbitrary file placement on the filesystem with the privileges of the checking-out process.

Affected products

GitoxideLabs gix-fs before 0.23.0

Timeline

2026-09-25: disclosed

References

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