{"id":"CVE-2026-93903","aliases":[],"cve":{"records":[{"id":"CVE-2026-93903","source":"mitre","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-18T20:40:05.869Z","published":"2026-09-30T13:44:11.915Z","modified":"2026-10-29T15:27:44.204Z"}],"publishers":[{"name":"mitre","role":"CNA","organizationId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","modified":"2026-10-29T15:27:44.204Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-30T16:30:52.184Z"}],"references":[{"url":"https://www.litespeedtech.com/products/litespeed-web-server/release-log","tags":[],"source":"mitre"},{"url":"https://docs.litespeedtech.com/lsws/changelog/#v6-3-7-build-1","tags":[],"source":"mitre"},{"url":"https://github.com/Tautvydas-Aleliunas/CVE-2026-93903","tags":[],"source":"mitre"}],"weaknesses":[{"id":"CWE-174","description":"CWE-174 Double Decoding of the Same Data","source":"mitre"}],"applicability":[{"source":"mitre","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:litespeedtech:litespeed_web_server:*:*:*:*:*:*:*:*","versionEndExcluding":"6.3.7 build 1"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-30T16:30:20.403820Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain \"corner case.\"","titleSource":"mitre","descriptionSource":"mitre","description":"LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain \"corner case.\"","score":9.4,"severity":"critical","published":"2026-09-30T13:44:11.915Z","modified":"2026-10-29T15:27:44.204Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"litespeedtech","name":"LiteSpeed Web Server","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"6.3.7 build 1","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"mitre","url":"https://www.cve.org/CVERecord?id=CVE-2026-93903"}],"remediation":[],"references":["https://www.litespeedtech.com/products/litespeed-web-server/release-log","https://docs.litespeedtech.com/lsws/changelog/#v6-3-7-build-1","https://github.com/Tautvydas-Aleliunas/CVE-2026-93903"],"sources":[{"name":"CVE","id":"CVE-2026-93903","modified":"2026-10-29T15:27:44.204Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-93903"}],"assessments":[{"source":"mitre","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.4}],"sourceAffected":[],"observedAt":"2026-10-29T16:20:05.105Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T09:35:34.504Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T16:50:37.939Z","attemptedAt":"2026-10-29T16:50:37.939Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-29T16:50:37.761Z","attemptedAt":"2026-10-29T16:50:37.761Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T16:50:37.855Z","attemptedAt":"2026-10-29T16:50:37.855Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T16:50:37.206Z","attemptedAt":"2026-10-29T16:50:37.206Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-93903","url":"https://www.first.org/epss/","probability":0.00256,"percentile":0.17269,"date":"2026-10-29","checkedAt":"2026-10-29T16:50:37.206Z"},{"source":"GitHub Advisory Database","id":"GHSA-8x5w-4247-99g6","url":"https://github.com/advisories/GHSA-8x5w-4247-99g6","modified":"2026-09-30T15:31:39Z","checkedAt":"2026-10-29T16:50:37.761Z"},{"source":"ENISA EUVD","id":"EUVD-2026-89955","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89955","modified":"Oct 29, 2026, 3:27:44 PM","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","checkedAt":"2026-10-29T16:50:37.855Z"},{"source":"NVD","id":"CVE-2026-93903","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93903","modified":"2026-10-29T16:20:06.357","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-29T16:50:37.939Z"}],"aiSummary":null}