CVE-2025-3262: PYSEC-2026-1979 - Transformers vulnerable to ReDoS attack through its SETTING_RE variable

CVE-2025-3262 · Severity: low · CVSS 3.1 · Published 2026-07-07

Transformers vulnerable to ReDoS attack through its SETTING_RE variable

Technologies: transformers (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-3262 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-3262 being exploited in the wild.
How severe is CVE-2025-3262?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
transformers (PyPI) ECOSYSTEM:introduced=4.49.0,fixed=4.51.0.
Is there a fix for CVE-2025-3262?
Yes. transformers (PyPI): upgrade to 4.51.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-3262?
Check whether you run transformers (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

  • transformers (PyPI): upgrade to 4.51.0 or later
    pip install "transformers>=4.51.0"

Affected products

  • transformers (PyPI) ECOSYSTEM:introduced=4.49.0,fixed=4.51.0

Identifiers

  • CVE-2025-3262
  • GHSA-489j-g2vx-39wf
  • PYSEC-2026-1979

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