CVE-2026-58045
Last modified
CVE-2026-58045 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. 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**.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
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**.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| nodejs | node | >= 26.5.0, <= 26.5.0; >= 24.18.0, <= 24.18.0; >= 22.23.1, <= 22.23.1 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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