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Advisory record · GHSA-2g87-pp6c-29x5

aiohttp: Multiple instances of excessive or unbounded memory/CPU use

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 19 Oct 2026, 17:07 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
aiohttpPyPI<3.14.43.14.4
Identifiers
GHSA-2g87-pp6c-29x5
Weakness (CWE)
CWE-770
Tags
Published
19 Oct 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

aiohttp versions before 3.14.4 can use excessive or unbounded memory, or excessive CPU, while handling attacker-controlled requests. An attacker can exhaust server resources by sending specially crafted requests, and the source gives few details on the specific cases. Upgrade to aiohttp 3.14.4 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:08 UTC First seen by agentprime
  2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.