CVE-2026-56846: CWE-400 Uncontrolled Resource Consumption in nodejs node
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**.
CVE-2026-56846: CWE-400 Uncontrolled Resource Consumption in nodejs node
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**.
CVSS v3.0
Score 7.5high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-06-23T15:00:03.632Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a713a63bf32cb7a3480a4cf
Added to database: 08/04/2026, 01:03:31 UTC
Last updated: 08/04/2026, 01:03:31 UTC
Views: 1
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