CVE-2024-30251: PYSEC-2026-1098 - aiohttp vulnerable to Denial of Service when trying to parse malformed POST requests

CVE-2024-30251 · Severity: low · CVSS 3.1 · Published 2026-07-07

aiohttp vulnerable to Denial of Service when trying to parse malformed POST requests

Technologies: aiohttp (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2024-30251 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-30251 being exploited in the wild.
How severe is CVE-2024-30251?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
aiohttp (PyPI) ECOSYSTEM:introduced=0,fixed=3.9.4.
Is there a fix for CVE-2024-30251?
Yes. aiohttp (PyPI): upgrade to 3.9.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-30251?
Check whether you run aiohttp (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

  • aiohttp (PyPI): upgrade to 3.9.4 or later
    pip install "aiohttp>=3.9.4"

Affected products

  • aiohttp (PyPI) ECOSYSTEM:introduced=0,fixed=3.9.4

Identifiers

  • CVE-2024-30251
  • GHSA-5m98-qgg9-wh84
  • PYSEC-2026-1098

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