CVE-2026-115907: high-severity vulnerability in zip-rs zip2
zip: legacy Shrink/Reduce/Implode decoder: denial of service from attacker-controlled ZIP64 uncompressed size
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
zip is a zip library for Rust that supports reading and writing simple ZIP files. From 5.1.0 until 9.0.0, applications built with the legacy-zip feature can reserve output capacity from an attacker-controlled ZIP64 uncompressed size before validating the compressed stream. The ShrinkDecoder path in src/legacy/shrink.rs can panic with a capacity overflow during ZipArchive::extract, and the Reduce and Implode decoders contain the same unbounded preallocation pattern. An unhandled panic can terminate an archive-processing service. This issue is fixed in version 9.0.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
zip-rs · zip2Related 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-2026-115905CRITICALzip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCEEPSS 0.3%CVE-2026-115906MEDIUMzip: AES Entry HMAC Authentication Bypass on Premature EOFEPSS 0.2%