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6.3
npm Package Installation Can Install Malicious Code
CVE-2025-13327
GHSA-v653-r55g-hcmg
Summary
A vulnerability in npm allows attackers to trick users into installing malicious software by hiding the malicious code in a specially crafted ZIP file. This requires the user to interact with the installation process. npm recommends updating to the latest version to prevent this issue.
What to do
- Update uv to version 0.9.6.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| – | uv | <= 0.9.6 | 0.9.6 |
Original title
uv has ZIP payload obfuscation through parsing differentials
Original description
A flaw was found in uv. This vulnerability allows an attacker to execute malicious code during package resolution or installation via specially crafted ZIP (Zipped Information Package) archives that exploit parsing differentials, requiring user interaction to install an attacker-controlled package.
nvd CVSS3.1
6.3
Vulnerability type
CWE-1286
- https://nvd.nist.gov/vuln/detail/CVE-2025-13327
- https://github.com/advisories/GHSA-v653-r55g-hcmg
- https://access.redhat.com/security/cve/CVE-2025-13327
- https://bugzilla.redhat.com/show_bug.cgi?id=2407263
- https://github.com/astral-sh/uv
- https://github.com/astral-sh/uv/commit/da659fee4898a73dbc75070f3e82d49f745e4628
- https://github.com/astral-sh/uv/security/advisories/GHSA-pqhf-p39g-3x64
Published: 27 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026