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CVE-2023-24807
February 16, 2023
Undici is an HTTP/1.1 client for Node.js. Prior to version 5.19.1, the "Headers.set()" and "Headers.append()" methods are vulnerable to Regular Expression Denial of Service (ReDoS) attacks when untrusted values are passed into the functions. This is due to the inefficient regular expression used to normalize the values in the "headerValueNormalize()" utility function. This vulnerability was patched in v5.19.1. No known workarounds are available.
Affected Packages
undici (NPM):
Affected version(s) >=0.1.0 <5.19.1
Fix Suggestion:
Update to version 5.19.1
Additional Notes
The description of this vulnerability differs from MITRE.
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
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:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Inefficient Regular Expression Complexity
Improper Input Validation
EPSS
Base Score:
0.26