Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-102282— adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -> local privilege escalation

Quick assessment

Affected
cthackers adm-zip
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.

adm-zip 是一个用于在 Node.js 中创建和解压 ZIP 归档文件的 JavaScript 库。在 0.6.1 版本之前，当向 或 方法传入 参数时，adm-zip 会将 ZIP 条目中存储的 Unix 权限位直接通过 应用到被解压的文件上——并且它从未从这些权限位中过滤掉 setuid（设置用户 ID）、setgid（设置组 ID）或 sticky bit（粘着位）。攻击者可以构造一个恶意的 ZIP 文件，从而生成一个权限模式为 的二进制文件。如果解压操作以 root 用户权限运行（在 Docker 构

CVSS 7.1 · High
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-102282

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -> local privilege escalation
Source: CVE Program / CVE List V5
Vulnerability Description
adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, adm-zip applies the Unix permission bits stored in a zip entry directly to the extracted file via `fs.chmodSync()` when `keepOriginalPermission=true` is passed to `extractAllTo()`/`extractEntryTo()` — and it never filters the setuid/setgid/sticky bits out of those bits. A zip crafted by an attacker can therefore produce an extracted binary with mode `04755`. When extraction runs as root (the default posture in Docker builds, CI runners, and privileged install steps — the exact environments where this flag is used), the resulting root-owned setuid file is executed later by a lesser-privileged user, turning the attacker's code into a root execution. Version 0.6.1 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cthackers adm-zip < 0.6.1 -

II. Public POCs for CVE-2026-102282

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-102282

请登录查看更多情报信息。

Other References for CVE-2026-102282 (1)

Other References for CVE-2026-102282 (2)

IV. Related Vulnerabilities

Same product: adm-zip
Same vendor: cthackers
Same weakness: CWE-732

V. Comments for CVE-2026-102282

No comments yet

Leave a comment