{"id":"CVE-2026-45822","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-45822","generatedAt":"2026-10-28T00:52:06.975Z","title":"decode-uri-component through 0.4.1 is vulnerable to denial of service.","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.","published":"2026-06-30T09:16:25.000Z","lastModified":"2026-10-25T21:10:01.000Z","status":"Deferred","sourceIdentifier":"22e2d327-25fe-45d7-9f0c-dcd23b7108df","cvss":{"version":"4.0","score":6.6,"severity":"MEDIUM","vector":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-400","CWE-407"],"affected":[],"epss":{"score":0.00507,"percentile":0.42971,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"},{"url":"https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"},{"url":"https://www.npmjs.com/package/decode-uri-component","source":"22e2d327-25fe-45d7-9f0c-dcd23b7108df"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45822","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}