CVE-2024-53981: PYSEC-2026-1851 - Denial of service (DoS) via deformation `multipart/form-data` boundary

CVE-2024-53981 · Severity: low · CVSS 3.1 · Published 2026-07-07

Denial of service (DoS) via deformation `multipart/form-data` boundary

Technologies: python-multipart (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2024-53981 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-53981 being exploited in the wild.
How severe is CVE-2024-53981?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
python-multipart (PyPI) ECOSYSTEM:introduced=0,fixed=0.0.18.
Is there a fix for CVE-2024-53981?
Yes. python-multipart (PyPI): upgrade to 0.0.18 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-53981?
Check whether you run python-multipart (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

  • python-multipart (PyPI): upgrade to 0.0.18 or later
    pip install "python-multipart>=0.0.18"

Affected products

  • python-multipart (PyPI) ECOSYSTEM:introduced=0,fixed=0.0.18

Identifiers

  • CVE-2024-53981
  • GHSA-59g5-xgcq-4qw3
  • PYSEC-2026-1851

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