CVE-2026-45822
Published:June 30, 2026
Updated:August 04, 2026
decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.
Affected Packages
https://github.com/SamVerschueren/decode-uri-component.git (GITHUB):
Affected version(s) >=v0.1.0 <v0.5.0Fix Suggestion:
Update to version v0.5.0decode-uri-component (NPM):
Affected version(s) >=0.1.0 <0.5.0Fix Suggestion:
Update to version 0.5.0Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.6
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
Exploit Maturity
UNREPORTED
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)
EPSS
Base Score:
0.29