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  5. GHSA-cjcg-cxmh-9wcr

GHSA-cjcg-cxmh-9wcr: Praxis affected by HTTP/2 Bomb

October 2, 2026

Multiple denial-of-service vulnerabilities have been discovered in HTTP/2 server implementations. All have been rated with a severity impact of Important. The vulnerabilities target HPACK, the header compression scheme in HTTP/2, where a small request can trigger large memory allocations on the server.

References

  • access.redhat.com/security/vulnerabilities/RHSB-2026-007
  • blog.calif.io/p/codex-discovered-a-hidden-http2-bomb
  • github.com/advisories/GHSA-cjcg-cxmh-9wcr
  • github.com/praxis-proxy/praxis/commit/2bb7b29d6992fc2d8045628475912d734e6bee97
  • github.com/praxis-proxy/praxis/releases/tag/v0.5.2
  • github.com/praxis-proxy/praxis/security/advisories/GHSA-cjcg-cxmh-9wcr

Code Behaviors & Features

Detect and mitigate GHSA-cjcg-cxmh-9wcr with GitLab Dependency Scanning

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Affected versions

All versions before 0.5.2

Fixed versions

  • 0.5.2

Solution

Upgrade to version 0.5.2 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

Source file

cargo/praxis-proxy/GHSA-cjcg-cxmh-9wcr.yml

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