PyPI: uv

GHSA-pjjw-68hj-v9mw

Safety vulnerability ID: SFTY-20260410-86374

## Impact Wheel RECORD entries can contain relative paths that traverse outside of the wheel’s installation prefix. In versions 0.11.5 and earlier of uv, these wheels were not rejected on installation and the RECORD was respected without validation on uninstall. uv uses the RECORD to determine files to remove on uninstall. Consequently, a malicious or malformed wheel could induce deletion of arbitrary files outside of the wheel’s installation prefix on uninstall. uv does not use the RECORD file to determine wheel file paths. Invalid RECORD entries cannot be used to create or modify files in arbitrary locations. Standards-compliant Python packaging tooling does not produce RECORD files that exhibit this behavior; an attacker must manually manipulate the RECORD. A user must install *and* uninstall the malformed wheel to be affected. An attack must guess the depth of the installation prefix path in order to target system files. Absolute paths in RECORD files are not allowed by the specification and, when present, uv always treats them as rooted in the wheel’s installation prefix. Absolute paths cannot be used to delete arbitrary files. Only files can be deleted, attempts to delete a directory via an invalid RECORD entry will fail. ## Patches Versions [0.11.6](https://github.com/astral-sh/uv/releases/tag/0.11.6) and newer of uv address the validation gap above, by [removing invalid entries from RECORD files on wheel installation](https://github.com/astral-sh/uv/pull/18943) and [ignoring RECORD paths that would escape the installation prefix on uninstall](https://github.com/astral-sh/uv/pull/18942). ## Workarounds Users are advised to upgrade to 0.11.6 or newer to address this advisory. Users should experience no breaking changes as a result of the patch above.

Created at: Apr 10, 2026Updated at: Apr 10, 2026

Overview

uv vulnerable to arbitrary file deletion through RECORD entries

Advisory

uv vulnerable to arbitrary file deletion through RECORD entries

Affected Package

Affecting uv package, versions<= 0.11.5

Also affects

---

How to Fix

Upgradeuvto0.11.6or higher.

Mitigation and Workarounds

---

Vulnerable Functions

Functions linked to known vulnerabilities.

Vulnerable function data is available for Enterprise customers

Book a call with us to see Safety in action.

Safety

Verified by Safety

Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.

Learn more