Description
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.
Published: 2026-10-26
Score: 7.5 High
EPSS: n/a
KEV: No
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History

Mon, 26 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title zip: legacy Shrink/Reduce/Implode decoder: denial of service from attacker-controlled ZIP64 uncompressed size
Weaknesses CWE-400
CWE-789
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-26T16:32:15.373Z

Reserved: 2026-10-23T20:21:45.106Z

Link: CVE-2026-115907

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T17:17:18.147

Modified: 2026-10-26T17:17:18.147

Link: CVE-2026-115907

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T17:30:16Z

Weaknesses