CVE-2026-115907
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
The zip library for Rust, from 5.1.0 until 9.0.0, with the legacy-zip feature enabled, reserves output capacity based on 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.
Risk Assessment
An attacker can supply a crafted ZIP archive that triggers a panic and crashes the archive-processing service, causing denial of service. The risk affects applications using the legacy-zip feature in versions 5.1.0 through 8.x.
Recommendation
Upgrade the zip library to version 9.0.0 or later, which fixes this issue. If upgrading is not possible, consider disabling the legacy-zip feature or restricting processing of untrusted archives.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

