Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/zip-rs/zip2/commit/a543a1fc8f3f3eef36f27bb137230295284cdb98
- https://github.com/zip-rs/zip2/pull/984
- https://github.com/zip-rs/zip2/releases/tag/v9.0.0
- https://github.com/zip-rs/zip2/security/advisories/GHSA-q7v9-x93c-xqv3
FAQ
What is CVE-2026-115909?
CVE-2026-115909 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 usi...
How severe is CVE-2026-115909?
CVE-2026-115909 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-115909?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.