CVE-2026-45822

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js
https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005
https://www.npmjs.com/package/decode-uri-component

Configurations

No configuration.

History

30 Jun 2026, 09:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-30 09:16

Updated : 2026-06-30 14:33

NVD link : CVE-2026-45822

Mitre link : CVE-2026-45822

CVE.ORG link : CVE-2026-45822

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-407

Inefficient Algorithmic Complexity

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