CVE-2026-115905criticalCWE-20CWE-436

CVE-2026-115905: critical vulnerability in zip-rs zip2

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

Published · Updated

Follow this CVE+ Monitor zip2+ Monitor zip

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 10epss 0.3%
from disclosure to weapon1 day
Published on NVDOct 26
1st PoC+1d
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.
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
Affected products
zip-rs · zip2
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — zip-rs zip2

In the same product, most dangerous first.

CVE-2025-29787HIGHzip Vulnerable to Incorrect Path Canonicalization During Archive Extraction, Leading to Arbitrary File WriteEPSS 0.6%CVE-2026-115909HIGHzip: Unbounded Symlink-Target Handling Can Abort Or Exhaust Memory During ExtractionEPSS 0.5%CVE-2026-115908HIGHzip: Arbitrary file write outside the extraction directory, because ZipArchive::extract validates symlink targets lexically. (The defense against CVE-2025-29787 was broken in v7.2.0)EPSS 0.4%CVE-2026-115907HIGHzip: legacy Shrink/Reduce/Implode decoder: denial of service from attacker-controlled ZIP64 uncompressed sizeEPSS 0.4%CVE-2026-115906MEDIUMzip: AES Entry HMAC Authentication Bypass on Premature EOFEPSS 0.2%