---
id: CVE-2025-13327
aliases:
  - GHSA-v653-r55g-hcmg
  - GHSA-pqhf-p39g-3x64
  - PYSEC-2026-2295
title: uv has ZIP payload obfuscation through parsing differentials
summary: uv has ZIP payload obfuscation through parsing differentials
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H'
vendor: uv
product: uv
ecosystem: rust
affected:
  - uv < 0.9.6
patched:
  - uv 0.9.6
published: '2026-02-27'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T00:45:06.541337146Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-v653-r55g-hcmg'
references:
  - url: 'https://github.com/astral-sh/uv/security/advisories/GHSA-pqhf-p39g-3x64'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13327'
  - url: >-
      https://github.com/astral-sh/uv/commit/da659fee4898a73dbc75070f3e82d49f745e4628
  - url: 'https://access.redhat.com/errata/RHSA-2026:91219'
  - url: 'https://access.redhat.com/errata/RHSA-2026:91232'
  - url: 'https://access.redhat.com/errata/RHSA-2026:91236'
  - url: 'https://access.redhat.com/security/cve/CVE-2025-13327'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2407263'
  - url: 'https://github.com/astral-sh/uv'
  - url: 'https://github.com/advisories/GHSA-v653-r55g-hcmg'
tags:
  - osv
  - rust
  - ghsa
  - pip
epss: 0.00172
epssPercentile: 0.066
cwe:
  - CWE-1286
ingestedAt: '2026-07-13T18:58:01.639Z'
---

## Overview

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.

## Affected packages

- `uv < 0.9.6`

## Remediation

Upgrade to a patched release:

- `uv 0.9.6`