CVE-2026-115908
zip: Arbitrary file write outside the extraction directory, because ZipArchive::extract validates symlink targets lexically.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | zip | >= 7.2.0, < 9.0.0 | 9.0.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Zip-Rs | Zip2 | from 7.2.0, before 9.0.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-hjqx-j4rw-g7xv
- https://github.com/zip-rs/zip2/security/advisories/GHSA-hjqx-j4rw-g7xv
- https://nvd.nist.gov/vuln/detail/CVE-2026-115908
- https://github.com/zip-rs/zip2/commit/09c030eab56e8db8fb3c1c33f554407b30bad8fa
- https://github.com/zip-rs/zip2/releases/tag/v9.0.0