PatchSiren cyber security CVE debrief
CVE-2026-10732 kevva CVE debrief
CVE-2026-10732 is a vulnerability in the decompress package that allows for arbitrary file writes via archive extraction (Zip Slip). An attacker can write arbitrary files on the host filesystem, potentially leading to remote code execution, by providing a specially crafted ZIP archive. This vulnerability bypasses all existing path traversal protections, including preventWritingThroughSymlink, added as part of the fix for CVE-2020-12265.
- Vendor
- kevva
- Product
- decompress
- CVSS
- MEDIUM 5.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-05
- Original CVE updated
- 2026-06-05
- Advisory published
- 2026-06-05
- Advisory updated
- 2026-06-05
Who should care
Developers and users of the decompress package should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The decompress package is 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.
Defensive priority
High
Recommended defensive actions
- Update to the latest version of the decompress package.
- Use a secure ZIP archive extraction library.
- Validate and sanitize user input to prevent arbitrary file writes.
Evidence notes
The CVE-2026-10732 vulnerability was reported by Snyk and has a CVSS score of 5.6 (Medium).
Official resources
CVE-2026-10732 was published on 2026-06-05T07:16:29.447Z and modified on 2026-06-05T14:59:51.620Z.