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**.
Repeated exploitation of this condition can result in a denial of service.
This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nodejs | node | unaffected |
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History
Tue, 04 Aug 2026 01:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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**. | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_0
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MITRE
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-08-04T00:49:58.266Z
Reserved: 2026-06-27T15:00:00.780Z
Link: CVE-2026-58045
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