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6.2 Medium

CVE-2026-58045 A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous…

Description

A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:zlib` APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of service. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.

Affected products and versions

Product Affected versions Fixed in
Node 26.5.0 No fix stated
Node 24.18.0 No fix stated
Node 22.23.1 No fix stated

References

Timeline

  1. Published
  2. Last modified

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