{"id":"CVE-2026-110223","revision":"4456a45adae84e28a5a3b062f6e11e38","records":[{"revision":"4456a45adae84e28a5a3b062f6e11e38","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110223","aliases":[],"title":"Kavita 0.9.0 through 0.9.1.4 SSRF Blocklist Bypass via upload-cbl-file Endpoint","description":"Kavita 0.9.0 through 0.9.1.4 contains a server-side request forgery vulnerability that allows authenticated users to bypass the SSRF blocklist through DNS rebinding or HTTPS redirects. Attackers can submit a URL to POST /api/Cbl/upload-cbl-file whose host rebinds or redirects to internal addresses after validation, enabling blind internal port and service probing.","state":0,"publishedAt":"2026-10-13T18:50:09.202+00:00","modifiedAt":"2026-10-14T15:57:31.688+00:00","affected":[{"ecosystem":"Vendor product","name":"Kavita","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Kareadita\",\n                    \"product\": \"Kavita\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.9.0\",\n                            \"lessThanOrEqual\": \"0.9.1.4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/Kareadita/Kavita\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":2.3,"severity":"LOW"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","score":3.1,"severity":"LOW"}],"references":["https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/kavita-cbl-url-preflight-ssrf","https://github.com/Kareadita/Kavita/blob/879b8b73eb41d66f88dde8eb874cc99a3397eb11/Kavita.Server/Controllers/CBLController.cs#L82-L108","https://github.com/Kareadita/Kavita/blob/879b8b73eb41d66f88dde8eb874cc99a3397eb11/Kavita.Common/Helpers/FlurlConfiguration.cs#L46-L89","https://github.com/Kareadita/Kavita","https://www.vulncheck.com/advisories/kavita-0.9.0-through-0.9.1.4-ssrf-blocklist-bypass-via-upload-cbl-file-endpoint"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110223","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110223","identifiers":["CVE-2026-110223"]},"retained":false,"historicalAffected":[]}],"coverage":[]}