CVE-2026-115908 zip: Arbitrary file write outside the extraction directory, because ZipArchive::extract validates symlink targets lexically.
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-115908?
CVE-2026-115908 is a high-severity vulnerability in zip-rs zip2, published on 26 Oct 2026.
Official description
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.
Which versions are affected by CVE-2026-115908?
2 open source packages ship an affected version, including zip.
| Package | Affected | Fixed in |
|---|---|---|
zip crates.io | From 7.2.0 | 9.0.0 |
zip crates.io | From 7.2.0 | 9.0.0 |
How do I fix CVE-2026-115908?
Upgrade zip to 9.0.0 or later.
Is CVE-2026-115908 being exploited?
There is no known exploitation of CVE-2026-115908 in the wild and no public exploit code.
Sources
Also known as GHSA-hjqx-j4rw-g7xv, UBUNTU-CVE-2026-115908.