by Kastro
Paper/Archive/CVE-2026-115905

CVE-2026-115905

zip-rs zip2 — zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCE

EPSS 0.3%CVSS 10.0
critical.is priorityof 100
35
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 25.0.250 × 205.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
zip2< 9.0.5–CNA

Scores by source

GitHub_M (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

References

refgithub.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grjrefgithub.com/zip-rs/zip2/commit/8068ab480ccf8daa7411424e365fcdbe6d09443erefgithub.com/zip-rs/zip2/releases/tag/v9.0.5