CVE-2026-58045
Published:August 04, 2026
Updated:August 04, 2026
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 Packages
https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v24.0.0 <v24.18.1Fix Suggestion:
Update to version v24.18.1https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v22.0.0 <v22.23.2Fix Suggestion:
Update to version v22.23.2https://github.com/nodejs/node.git (GITHUB):
Affected version(s) >=v26.0.0 <v26.5.1Fix Suggestion:
Update to version v26.5.1Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.2
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
EPSS
Base Score:
0.19