CVE-2026-58045
published 2026-08-04CVE-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…
PriorityP424medium6.2CVSS 3.0
AVLACLPRNUINSUCNINAH
EPSS
0.20%
10.0th percentile
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
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| nodejs | node | 22.23.1 – 22.23.1 | — |
| nodejs | node | 24.18.0 – 24.18.0 | — |
| nodejs | node | 26.5.0 – 26.5.0 | — |
| nodejs_22 | nodejs | — | — |
| nodejs_24 | nodejs | — | — |
CVSS provenance
nvdv3.06.2MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.2MEDIUM
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GHSA
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.
ghsa_unreviewed·2026-08-04
CVE-2026-58045 [MEDIUM] CWE-400 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.
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**.
Red Hat
nodejs: Node.js: Denial of Service vulnerability
vendor_redhat·2026-08-04·CVSS 6.2
CVE-2026-58045 [MEDIUM] CWE-617 nodejs: Node.js: Denial of Service vulnerability
nodejs: Node.js: Denial of Service vulnerability
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**.
A flaw was found in Node.js. A malicious actor could exploit this vulnerability by providing a specially crafted input to the synchronous `node:zlib` APIs. This could cause the Node.js process to crash, leading to a denial of service and making the application unavailable to users.
Statement: This flaw strictly impacts Availability with zero effect on Confidentiality or Integrity (C:N,
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-58045 nodejs22: Node.js: Denial of Service vulnerability [fedora-all]
bugzilla·2026-08-10·CVSS 6.2
CVE-2026-58045 [MEDIUM] CVE-2026-58045 nodejs22: Node.js: Denial of Service vulnerability [fedora-all]
CVE-2026-58045 nodejs22: Node.js: Denial of Service vulnerability [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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**.
Bugzilla
CVE-2026-58045 nodejs24: Node.js: Denial of Service vulnerability [fedora-all]
bugzilla·2026-08-10·CVSS 6.2
CVE-2026-58045 [MEDIUM] CVE-2026-58045 nodejs24: Node.js: Denial of Service vulnerability [fedora-all]
CVE-2026-58045 nodejs24: Node.js: Denial of Service vulnerability [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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**.
Bugzilla
CVE-2026-58045 nodejs: Node.js: Denial of Service vulnerability
bugzilla·2026-08-04·CVSS 6.2
CVE-2026-58045 [MEDIUM] CVE-2026-58045 nodejs: Node.js: Denial of Service vulnerability
CVE-2026-58045 nodejs: Node.js: Denial of Service vulnerability
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**.
2026-08-04
Published