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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-56846

A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion.

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Status
Published
Published
Updated
Assigning organization
hackerone

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nodejs node

Default version status: unaffected

  • 24.18.0 to ≤ 24.18.0affected
  • 22.23.1 to ≤ 22.23.1affected

References