Improper Validation in Zip Library for Rust Affects File Writing
CVE-2026-115905

10CRITICAL

Key Information:

Vendor

Zip-rs

Status
Zip2
Vendor
CVE Published:
26 October 2026

What is CVE-2026-115905?

The Zip Library for Rust, specifically version 9.0.4, has a vulnerability where it improperly reconciles filenames in Central Directory File Header with those in Local File Header during file extraction. This can lead to a scenario where an attacker crafts a ZIP archive that appears harmless based on central directory inspection, yet allows the streaming extraction process to write to unintended paths specified by the attacker. As a result, this issue poses a risk of overwriting files that may be critical to downstream services. The vulnerability was addressed in version 9.0.5.

Affected Version(s)

zip2 < 9.0.5

References

https://github.com/zip-rs/zip2/security/advisories/GHSA-m...
x_refsource_CONFIRM
https://github.com/zip-rs/zip2/commit/8068ab480ccf8daa741...
x_refsource_MISC
https://github.com/zip-rs/zip2/releases/tag/v9.0.5
x_refsource_MISC

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.