---
id: CVE-2026-47425
aliases:
  - GHSA-q53q-5r4j-5729
  - PYSEC-2026-2971
title: >-
  rattler has an entry-point path traversal in noarch:python install (arbitrary
  file write)
summary: >-
  rattler has an entry-point path traversal in noarch:python install (arbitrary
  file write)
severity: medium
vendor: rattler
product: rattler
ecosystem: rust
affected:
  - rattler < 0.43.2
  - py-rattler < 0.24.0
patched:
  - rattler 0.43.2
  - py-rattler 0.24.0
published: '2026-06-01'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-q53q-5r4j-5729'
references:
  - url: 'https://github.com/conda/rattler/security/advisories/GHSA-q53q-5r4j-5729'
  - url: 'https://github.com/conda/rattler/pull/2445'
  - url: 'https://github.com/conda/rattler'
tags:
  - osv
  - rust
ingestedAt: '2026-07-13T18:58:01.793Z'
epss: 0.00196
epssPercentile: 0.09565
---

## Overview

## Summary

`EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `rattler-build`, some methods in `py-rattler`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved.

Resolved in https://github.com/conda/rattler/pull/2445, released in rattler 0.43.2.

## Affected

- Repository: https://github.com/conda/rattler
- Commit: `a0e61a33da8b9d6de712fab2a879fa9da977e6e3` (HEAD at audit time, 2026-05-13 release)
- Downstream consumers reached through the same code path: `prefix-dev/pixi` @ `e640477`
- pixi 0.69.0 and rattler-build 0.65.0 fix this issue

## Researcher

Berkant Koc <me@berkoc.com>
PGP: 0C588DFD76204987284213EA0AC529C41F8AA5D6

## Affected packages

- `rattler < 0.43.2`
- `py-rattler < 0.24.0`

## Remediation

Upgrade to a patched release:

- `rattler 0.43.2`
- `py-rattler 0.24.0`