Remote Code Execution Risk in Rust Zip Library Affecting Applications
CVE-2026-115907

7.5HIGH

Key Information:

Vendor

Zip-rs

Status
Zip2
Vendor
CVE Published:
26 October 2026

What is CVE-2026-115907?

The zip library for Rust contains a code execution risk that allows applications using the legacy-zip feature to reserve output capacity based on an attacker-controlled ZIP64 uncompressed size. This occurs before validating the compressed stream, particularly in the ShrinkDecoder path. When ZipArchive::extract is invoked, a panic due to a capacity overflow can occur, potentially terminating the archive-processing service. The vulnerability has been addressed and is resolved in version 9.0.0 of the zip library.

Affected Version(s)

zip2 >= 5.1.0, < 9.0.0

References

https://github.com/zip-rs/zip2/security/advisories/GHSA-9...
x_refsource_CONFIRM
https://github.com/zip-rs/zip2/pull/991
x_refsource_MISC
https://github.com/zip-rs/zip2/commit/8b4991288b79ad11cce...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.