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7.5 High

CVE-2026-56846 A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote…

Description

A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion. This vulnerability affects Node.js **24.x** and **22.x**.

Affected products and versions

Product Affected versions Fixed in
Node 24.18.0 No fix stated
Node 22.23.1 No fix stated

References

Timeline

  1. Published
  2. Last modified

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