CVE-2026-115909 zip: Unbounded Symlink-Target Handling Can Abort Or Exhaust Memory During Extraction
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-115909?
CVE-2026-115909 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 1.3.0 until 9.0.0, ZipArchive::extract in src/read/mod.rs calls Vec::with_capacity for a symbolic link target using the attacker-controlled ZIP64 uncompressed_size before reading entry data. A small archive can request an impossible capacity, causing the infallible allocation path to abort the process before the entry is validated. The failure cannot be contained with catch_unwind or a worker thread, allowing repeated denial of service in archive-processing applications. This issue is fixed in version 9.0.0.
Which versions are affected by CVE-2026-115909?
2 open source packages ship an affected version, including zip.
| Package | Affected | Fixed in |
|---|---|---|
zip crates.io | From 1.3.0 | 9.0.0 |
zip crates.io | From 1.3.0 | 9.0.0 |
How do I fix CVE-2026-115909?
Upgrade zip to 9.0.0 or later.
Is CVE-2026-115909 being exploited?
There is no known exploitation of CVE-2026-115909 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-115909, GHSA-q7v9-x93c-xqv3, UBUNTU-CVE-2026-115909.