CVE-2025-55201: PYSEC-2026-1271 - Copier's safe template has arbitrary filesystem read/write access

CVE-2025-55201 · Severity: medium · CVSS 4 · Published 2026-07-07

Copier's safe template has arbitrary filesystem read/write access

Technologies: copier (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-55201 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-55201 being exploited in the wild.
How severe is CVE-2025-55201?
Medium severity, with a CVSS score of 4, published 7 July 2026.
Which products and versions are affected?
copier (PyPI) ECOSYSTEM:introduced=0,fixed=9.9.1.
Is there a fix for CVE-2025-55201?
Yes. copier (PyPI): upgrade to 9.9.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-55201?
Check whether you run copier (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • copier (PyPI): upgrade to 9.9.1 or later
    pip install "copier>=9.9.1"

Affected products

  • copier (PyPI) ECOSYSTEM:introduced=0,fixed=9.9.1

Identifiers

  • CVE-2025-55201
  • GHSA-3xw7-v6cj-5q8h
  • PYSEC-2026-1271

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