HIGH 7.5 NVD

CVE-2026-56848

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

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**.

References

https://nodejs.org/en/blog/vulnerability/july-2026-security-releases

Published: 2026-08-04 · Source: NVD · Feed updated: 2026-08-04

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-08-04 via NVD.

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