CVE-2026-56846
HIGH
7.5
CVSS Score
Published: August 4, 2026 at 12:49 AM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorNode.js
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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit
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**.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
Source: cverecord
https://nodejs.org/en/blog/vulnerability/july-2026-security-releasesSSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.5HIGHhackerone
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-400
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