CVE-2026-58045: 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 synch
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-58045
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-58045 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[NEW] [medium] Node.js: Multiple vulnerabilitiescert-bund
- unknownNode.js Multiple Vulnerabilitieshkcert
- unknownMultiple Vulnerabilities in Node.js (July 30, 2026)cert-fr-avis
Recent advisories for Node.js
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- lowCVE-2026-58044: A flaw in Node.js HTTP client can cause a request desynchronization for Node.js-based forwardi…nvd · 2026-08-04
- mediumCVE-2026-58042: A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Co…nvd · 2026-08-04
- mediumCVE-2026-58041: A flaw in Node.js node:sqlite allows a stale StatementSyncIterator created through DatabaseSyn…nvd · 2026-08-04
- highCVE-2026-56846: A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemo…nvd · 2026-08-04
- criticalCVE-2026-69240: Sequelize is a Node.js ORM tool. Prior to 6.37.4, SQL injection is possible with strings only …nvd · 2026-08-03
- medium[NEW] [medium] Node.js: Multiple vulnerabilitiescert-bund · 2026-08-03
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