CVE-2026-115905 PUBLISHED

zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCE

Assigner: GitHub_M
Reserved: 23.10.2026 Published: 26.10.2026 Updated: 26.10.2026

zip is a zip library for Rust that supports reading and writing simple ZIP files. Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while ZipStreamReader extracts using Local File Header filenames without reconciling the duplicate metadata in src/read/stream.rs. A crafted archive can therefore appear benign to a component that inspects the central directory but cause a streaming extractor to write a different attacker-selected path and content, potentially overwriting files used by a downstream service. This issue is fixed in version 9.0.5.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
CVSS Score: 10

Product Status

Vendor zip-rs
Product zip2
Versions
  • Version < 9.0.5 is affected

References

Problem Types

  • CWE-20: Improper Input Validation CWE
  • CWE-436: Interpretation Conflict CWE