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CVE-2026-53486— decompress: Archive extraction can create files and links outside the target directory

Quick assessment

Affected
XhmikosR decompress
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

XhmikosR decompress是XhmikosR组织开源的一款文件解压缩软件。 XhmikosR decompress 10.2.1之前版本和11.0.0至11.1.3之前版本存在安全漏洞，该漏洞源于在创建硬链接和符号链接条目时未检查目标指向、路径包含使用字符串前缀比较以及文件模式未去除setuid、setgid或sticky位，可能导致特制归档文件在目标目录之外读取或写入文件。

CVSS 9.1 · Critical EPSS 0.75% · P55

Affected Version Matrix 2

VendorProduct Version RangeStatus
XhmikosR decompress < 10.2.1 affected
>= 11.0.0, < 11.1.3 affected
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I. Basic Information for CVE-2026-53486

Vulnerability Information
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Vulnerability Title
decompress: Archive extraction can create files and links outside the target directory
Source: CVE Program / CVE List V5
Vulnerability Description
The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
XhmikosR decompress 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
XhmikosR decompress是XhmikosR组织开源的一款文件解压缩软件。 XhmikosR decompress 10.2.1之前版本和11.0.0至11.1.3之前版本存在安全漏洞，该漏洞源于在创建硬链接和符号链接条目时未检查目标指向、路径包含使用字符串前缀比较以及文件模式未去除setuid、setgid或sticky位，可能导致特制归档文件在目标目录之外读取或写入文件。
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
XhmikosR decompress < 10.2.1 -

II. Public POCs for CVE-2026-53486

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9790 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-53486

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Patches & Fixes for CVE-2026-53486 (5)

Vendor Advisories for CVE-2026-53486 (1)

Vendor Pages for CVE-2026-53486 (1)

IV. Related Vulnerabilities

Same product: decompress
Same vendor: XhmikosR
Same weakness: CWE-22