zip-rs zip2 up to 8.x Symbolic Link Resolution src/read/zipfile.rs extract_unwrapped_root_dir path traversal

Summaryinfo

A vulnerability labeled as critical has been found in zip-rs zip2 up to 8.x. This impacts the function ZipArchive::extract/ZipArchive::extract_unwrapped_root_dir of the file src/read/zipfile.rs of the component Symbolic Link Resolution. The manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-115908. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in zip-rs zip2 up to 8.x. It has been classified as critical. Affected is the function ZipArchive::extract/ZipArchive::extract_unwrapped_root_dir of the file src/read/zipfile.rs of the component Symbolic Link Resolution. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on integrity, and availability. CVE summarizes:

zip is a zip library for Rust that supports reading and writing simple ZIP files. From 7.2.0 until 9.0.0, ZipArchive::extract and ZipArchive::extract_unwrapped_root_dir use safe_prepare_path in src/read/zipfile.rs and simplified_components in src/path.rs to validate symbolic link targets with a lexical prefix comparison rather than resolving each intermediate link. An attacker who knows or can guess the absolute extraction destination can create a chain whose apparent target remains under the destination while an intermediate symlink resolves outside it, allowing attacker-controlled files to be created or overwritten with the extracting process's privileges. On Windows, discarded drive and UNC prefixes can permit a single-link escape when the process has SeCreateSymbolicLinkPrivilege, such as through administrator rights or Developer Mode. This regression is distinct from CVE-2025-29787. This issue is fixed in version 9.0.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-115908 since 10/23/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 9.0.0 eliminates this vulnerability.

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Productinfo

Vendor

• zip-rs

Name

• zip2

Version

• 8.x

Website

• Product: https://github.com/zip-rs/zip2/

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