CVE-2026-45822

State: Published
Severity: 6.6 Medium
Published: Jun 30, 2026
Updated: Jun 30, 2026
Reserved: May 13, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.6 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber	seal

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-407 Inefficient Algorithmic Complexity

Affected Products

Product	Versions
decode-uri-componentSamVerschueren	0.1.0 to before 0.5.0Affected

References

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