CVE-2026-102282 (GCVE-0-2026-102282)

Vulnerability from cvelistv5 – Published: 2026-10-05 17:00 – Updated: 2026-10-07 20:53
VLAI
Title
adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -> local privilege escalation
Summary
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.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 20:53 UTC
CWE
  • CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7565 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
cthackers adm-zip Affected: < 0.6.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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