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CVE-2026-39244

Quick assessment

Affected
n/a n/a
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.

The Brain ADM-ZIP是The Brain个人开发者的一款数据压缩与解压缩处理工具。 The Brain ADM-ZIP 0.5.18之前版本存在资源管理错误漏洞，该漏洞源于未验证ZIP中央目录头中声明的未压缩大小，导致内存分配放大，容易受到拒绝服务攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.84% · P57

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-39244

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
adm-zip before 0.5.18 is vulnerable to denial of service via a crafted ZIP file with a manipulated uncompressed size header field. In zipEntry.js line 103, Buffer.alloc(_centralHeader.size) allocates memory based on the declared uncompressed size from the ZIP central directory header without validating it against the actual compressed data size or imposing any upper bound. The size value is read directly from the binary header at entryHeader.js line 266 with no bounds check. An attacker can craft a ~120-byte ZIP file that declares ~4GB uncompressed size, causing a memory allocation amplification ratio of over 33 million to 1. The allocation occurs before CRC validation, so the malicious payload cannot be rejected early. All extraction and read methods are affected: readFile(), readAsText(), extractEntryTo(), extractAllTo(), extractAllToAsync(), test(), and entry.getData(). Any application accepting untrusted ZIP files via adm-zip is vulnerable to immediate process crash.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
The Brain ADM-ZIP 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
The Brain ADM-ZIP是The Brain个人开发者的一款数据压缩与解压缩处理工具。 The Brain ADM-ZIP 0.5.18之前版本存在资源管理错误漏洞，该漏洞源于未验证ZIP中央目录头中声明的未压缩大小，导致内存分配放大，容易受到拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-39244

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III. Intelligence Information for CVE-2026-39244

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Patches & Fixes for CVE-2026-39244 (1)

Other References for CVE-2026-39244 (1)

Same Patch Batch · n/a · 2026-07-10 · 4 CVEs total

CVE-2026-15321 2.4 LOW MyEMS Admin Backend svg.py on_post cross site scripting
CVE-2026-51119 Invixium IXM WEB 权限许可和访问控制问题漏洞
CVE-2025-70796 WTI Web Management Interface 路径遍历漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-39244

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