CVE-2026-10732
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk41th percentile - higher than 41% of all known CVEs
Summary
The decompress package in all versions is vulnerable to arbitrary file write via archive extraction (Zip Slip). The vulnerability is due to microtask processing order that bypasses existing protections against writing through symlinks. An attacker can provide a crafted ZIP archive, potentially leading to remote code execution.
Risk Assessment
An attacker can write arbitrary files on the host filesystem, potentially leading to remote code execution or system compromise.
Recommendation
Upgrade the decompress package to a version containing a fix or use an alternative archive extraction package.
Other vulnerabilities in decompress
See all- CVE-2026-53486Critical
A vulnerability in the decompress package for Node.js allows creating files and links outside the target directory during archive extraction. The issue stems from missing validation of hardlink and symlink paths, prefix-based path containment checks, and failure to remove setuid, setgid, or sticky bits from file modes.
- CVE-2026-39246High
The 'decompress' library before version 4.2.2 allows arbitrary symlink creation during archive extraction. An attacker can craft an archive with symlink entries pointing to sensitive files outside the extraction directory, leading to information disclosure.
- CVE-2026-39245Medium
In the 'decompress' library before version 4.2.2, a path traversal and arbitrary file write vulnerability exists due to improper path containment check. The safeMakeDir function and extraction path validation use String.indexOf() to verify the resolved path is within the output directory, which can be bypassed by missing a path separator boundary. An attacker can write arbitrary files outside the intended directory, bypassing the fix for CVE-2020-12265.
- CVE-2026-39243Medium
The 'decompress' library before version 4.2.2 allows arbitrary hardlink creation during archive extraction. An attacker can craft an archive with a hardlink entry containing an absolute path to any file on the same filesystem, leading to file content disclosure or overwriting.
Original NVD description (English source)
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).