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Wednesday, July 29, 2026 Security Releases

Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.

Published By From Node.js News · 1 min read

Updates are now available for the 26.x, 24.x, 22.x Node.js release lines for the following issues.

This security release includes the following dependency updates to address public vulnerabilities:

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

Thank you, to leduckhuong for reporting this vulnerability and thank you mcollina for fixing it.

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.

Thank you, to hahahkim for reporting this vulnerability and thank you mcollina for fixing it.

A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries.

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