{"id":"CVE-2026-45822","details":"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.","modified":"2026-08-07T11:31:22.088097716Z","published":"2026-06-30T08:05:36.399Z","database_specific":{"cna_assigner":"seal","cwe_ids":["CWE-400","CWE-407"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45822.json"},"references":[{"type":"WEB","url":"https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js"},{"type":"WEB","url":"https://www.npmjs.com/package/decode-uri-component"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45822.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45822"},{"type":"FIX","url":"https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samverschueren/decode-uri-component","events":[{"introduced":"43d5a895a5dbcac13faf19d3235a155635f5feda"},{"fixed":"a12fabaa28303cc8b5b07e93d128f4fc09fc31e5"}],"database_specific":{"extracted_events":[{"introduced":"0.1.0"},{"fixed":"0.5.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.4.1","v0.4.0","v0.3.0","v0.2.2","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45822.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"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"}]}