Description

A flaw in Node.js HTTP/2 handling allows `nghttp2_session_mem_send()` to be called re-entrantly while `nghttp2_session_mem_recv()` is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

Severity (CVSS)

Base score7.5
SeverityHigh
VersionCVSS 3.0
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Provided byCNA

Weaknesses

  • CWE-416 — CWE-416 Use After Free

Affected products

VendorProductVersions
nodejsnode26.5.0 to <=26.5.0; 24.18.0 to <=24.18.0; 22.23.1 to <=22.23.1

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 05 Aug 2026 07:03 UTC.