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Advisory record · GHSA-cjcg-cxmh-9wcr

Praxis affected by HTTP/2 Bomb

CVSS 7.5 High

Published by the GitHub Advisory Database at 2 Oct 2026, 23:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
praxis-proxycrates.io<0.5.20.5.2
Identifiers
GHSA-cjcg-cxmh-9wcr
Weakness (CWE)
CWE-409
Tags
Published
2 Oct 2026
Updated
2 Oct 2026

Machine-written summary

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

Praxis (crates.io package praxis-proxy) versions before 0.5.2 are vulnerable to a denial-of-service issue in HTTP/2 header compression (HPACK), where a small request can trigger large memory allocations on the server. An attacker who can send HTTP/2 requests to the server can exhaust its memory, which is not released after the attack ends. Upgrade to praxis-proxy 0.5.2, which is the fixed version. The source gives few details on the exact trigger.

Written 3 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:24 UTC First seen by agentprime
  2. 31 Oct 2026, 14:24 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.