{"id":"CVE-2026-45307","summary":"Speakr: Open redirect in is_safe_url via parser mismatch on next parameter","details":"Speakr is a personal, self-hosted web application designed for transcribing audio recordings. Prior to 0.8.20-alpha, the is_safe_url() helper used to validate post-login redirect targets applied urljoin(request.host_url, target) before parsing, while the controller passed the raw target to redirect(). A scheme-relative input such as ////evil.com resolved to a same-host URL during validation but was emitted verbatim in the Location header, where the browser interpreted it as a network-path-relative redirect to an attacker-controlled host. This vulnerability is fixed in 0.8.20-alpha.","aliases":["GHSA-5cpp-mqgh-4c38"],"modified":"2026-07-08T08:12:35.460642888Z","published":"2026-05-28T17:47:22.181Z","database_specific":{"cwe_ids":["CWE-601"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45307.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45307.json"},{"type":"ADVISORY","url":"https://github.com/murtaza-nasir/speakr/security/advisories/GHSA-5cpp-mqgh-4c38"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45307"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/murtaza-nasir/speakr","events":[{"introduced":"0"},{"fixed":"e290a799ef8dad430758bb269c3db9ea053bb664"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"0.8.20-alpha"}]}}],"versions":["v0.8.19-alpha","v0.8.18-alpha","v0.8.17-alpha","v0.8.16-alpha","v0.8.15-alpha","v0.8.14-alpha","v0.8.13-alpha","v0.8.12-alpha","v0.8.11-alpha","v0.8.10-alpha","v0.8.9-alpha","v0.8.8-alpha","v0.8.7.2","v0.8.7-alpha","v0.8.6.1-alpha","v0.8.6-alpha","v0.8.5.1-alpha","v0.8.5-alpha","v0.8.4","v0.8.4-alpha","v0.8.3-alpha","v0.8.2-alpha","v0.8.1-alpha","v0.8.0-alpha","v0.7.2-alpha","v0.7.1-alpha","v0.7.0-alpha","v0.6.5-alpha","v0.6.4-alpha","v0.6.3-alpha","v0.6.2-alpha","v0.6.1-alpha","v0.6.0-alpha","v0.5.10-alpha","v0.5.9-alpha","v0.5.8-alpha","v0.5.7-alpha","v0.5.6","v0.5.5-alpha","v0.5.1-alpha","v0.5.0-alpha","v0.4.2-alpha","v0.4.1-alpha","v0.3.1-alpha","v0.2.1-alpha","v0.2.0-alpha"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45307.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}