Vulnerability advisory
RUSTSEC-2026-0368
zip: `ZipArchive::extract` creates symbolic links whose attacker-controlled targets are outside the destination directory
Also known as GHSA-4v9h-p7m9-rh26
Severity not reported.
Affected versions
zip crates.io
All zip advisories →| Affected | Fixed in |
|---|---|
0.0.0-0 to before 9.0.0 | 9.0.0Advisories → |
Description
In zip 9.0.0-pre2, ZipArchive::extract creates a symbolic link from an archive entry after validating only the output entry path. The link target bytes are passed directly to the platform symlink API, so a malicious archive can create an entry inside the destination that resolves to an attacker-chosen path outside it. This behavior was verified on macOS and Linux. On either platform, a subsequent application read or write through that extracted entry accesses the external target with the extracting process's permissions.
For further details see: https://github.com/zip-rs/zip2/security/advisories/GHSA-4v9h-p7m9-rh26