CVE-2026-45822

unknowncovered by 1 sourcefirst seen 2026-06-30

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.

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Exploitation outlook

Low exploitation risk0.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-45822: decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function s…nvd · 2026-06-30

External references

NVD record for CVE-2026-45822

CVE.org record

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