CVE-2026-10732

decompress: Decompress: Arbitrary file write leading to remote code execution via crafted ZIP archive (Zip Slip)

Published Jun 5, 2026 CVSS 4.0 · 6.1 Medium EPSS < 1% KEV · Not listed
Description
All versions of the package decompress are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) when extracting a ZIP archive containing two entries with the same path - the first being a symlink to an arbitrary target and the second being a regular file - the file content is written through the symlink to the target location outside the output directory. This is due to the microtask processing order that checks readlink for the second file before resolving symlink for the first file. An attacker can write arbitrary file on the host filesystem potentially leading to remote code execution by providing a specially crafted ZIP archive.

**Note:**

This bypasses all existing path traversal protections including preventWritingThroughSymlink, added as a part of the fix for [CVE-2020-12265](https://security.snyk.io/vuln/SNYK-JS-DECOMPRESS-557358).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-h39j-r5qq-r9mm decompress: Arbitrary File Write via Archive Extraction (Zip Slip)
History
Type Values Removed Values Added
Title Symlink‑Based Zip Slip Leading to Arbitrary File Write in decompress decompress: Decompress: Arbitrary file write leading to remote code execution via crafted ZIP archive (Zip Slip)
Weaknesses CWE-22
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Kevva
Kevva decompress
Vendors & Products Kevva
Kevva decompress
Type Values Removed Values Added
Title Symlink‑Based Zip Slip Leading to Arbitrary File Write in decompress
Type Values Removed Values Added
Description All versions of the package decompress are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) when extracting a ZIP archive containing two entries with the same path - the first being a symlink to an arbitrary target and the second being a regular file - the file content is written through the symlink to the target location outside the output directory. This is due to the microtask processing order that checks readlink for the second file before resolving symlink for the first file. An attacker can write arbitrary file on the host filesystem potentially leading to remote code execution by providing a specially crafted ZIP archive. **Note:** This bypasses all existing path traversal protections including preventWritingThroughSymlink, added as a part of the fix for [CVE-2020-12265](https://security.snyk.io/vuln/SNYK-JS-DECOMPRESS-557358).
Weaknesses CWE-29
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L/E:P'}

cvssV4_0

{'score': 6.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
snyk
Published
Updated
Sep 7, 2026, 12:04 PM
Reserved
Jun 3, 2026, 11:55 AM
Status
Awaiting Analysis
Published
Jun 5, 2026, 7:16 AM
Modified
Sep 7, 2026, 1:18 PM
Severity
Important
Public date
Jun 5, 2026, 5:00 AM