CVE-2026-115905
zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCE
CRITICAL 10.0EPSS 0.3%
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.
- Affected
- zip-rs · zip2
- CVSS v4.0 GITHUB
- 10.0 CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 10.0 CRITICAL
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 - EPSS
- 0.32% chance of exploitation in the next 30 days, 25th percentile
- Published
- 2026-10-26
Proof-of-concept exploits (1)
CVE references
- zip-rs/zip2/commit/8068ab480ccf8daa7411424e365fcdbe6d09443eREFERENCE
- zip-rs/zip2/releases/tag/v9.0.5REFERENCE
- zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grjREFERENCE