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CVE-2026-115909— zip: Unbounded Symlink-Target Handling Can Abort Or Exhaust Memory During Extraction

Quick assessment

Affected
zip-rs zip2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

是一个用于 Rust 的 ZIP 库，支持读写简单的 ZIP 文件。在 1.3.0 到 9.0.0 版本中， 中的 方法会在读取条目数据之前，根据攻击者可控的 ZIP64 字段，为符号链接的目标调用 。一个小型的归档文件可能请求一个无法实现的容量，导致不可失败的分配路径在条目被验证之前就终止进程。该错误无法通过 或工作线程来捕获，因此会导致处理归档的应用程序遭受反复的拒绝服务（DoS）攻击。此问题已在 9.0.0 版本中修复。

CVSS 7.5 · High
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I. Basic Information for CVE-2026-115909

Vulnerability Information
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Vulnerability Title
zip: Unbounded Symlink-Target Handling Can Abort Or Exhaust Memory During Extraction
Source: CVE Program / CVE List V5
Vulnerability Description
zip is a zip library for Rust that supports reading and writing simple ZIP files. From 1.3.0 until 9.0.0, ZipArchive::extract in src/read/mod.rs calls Vec::with_capacity for a symbolic link target using the attacker-controlled ZIP64 uncompressed_size before reading entry data. A small archive can request an impossible capacity, causing the infallible allocation path to abort the process before the entry is validated. The failure cannot be contained with catch_unwind or a worker thread, allowing repeated denial of service in archive-processing applications. This issue is fixed in version 9.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
zip-rs zip2 >= 1.3.0, < 9.0.0 -

II. Public POCs for CVE-2026-115909

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III. Intelligence Information for CVE-2026-115909

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Patches & Fixes for CVE-2026-115909 (2)

Vendor Advisories for CVE-2026-115909 (1)

Same Patch Batch · zip-rs · 2026-10-26 · 5 CVEs total

CVE-2026-115905 10.0 CRITICAL zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencie
CVE-2026-115907 7.5 HIGH zip: legacy Shrink/Reduce/Implode decoder: denial of service from attacker-controlled ZIP6
CVE-2026-115908 7.4 HIGH zip: Arbitrary file write outside the extraction directory, because ZipArchive::extract va
CVE-2026-115906 6.5 MEDIUM zip: AES Entry HMAC Authentication Bypass on Premature EOF

IV. Related Vulnerabilities

Same product: zip2
Same vendor: zip-rs
Same weakness: CWE-400