{"id":"PYSEC-2025-73","details":"Datasette is an open source multi-tool for exploring and publishing data. In versions 0.65.1 and below and 1.0a0 through 1.0a19, deployed instances of Datasette include an open redirect vulnerability. Hits to the path //example.com/foo/bar/ (the trailing slash is required) will redirect the user to https://example.com/foo/bar. This problem has been patched in both Datasette 0.65.2 and 1.0a21. To workaround this issue, if Datasette is running behind a proxy, that proxy could be configured to replace // with / in incoming request URLs.","aliases":["CVE-2025-64481","GHSA-w832-gg5g-x44m"],"modified":"2026-05-19T05:15:05.313924531Z","published":"2025-11-07T21:15:42.010Z","references":[{"type":"ADVISORY","url":"https://github.com/simonw/datasette/security/advisories/GHSA-w832-gg5g-x44m"},{"type":"REPORT","url":"https://github.com/simonw/datasette/issues/2429"},{"type":"FIX","url":"https://github.com/simonw/datasette/commit/f257ca6edb64848c3b04b54d41e347c54fe57c05"}],"affected":[{"package":{"name":"datasette","ecosystem":"PyPI","purl":"pkg:pypi/datasette"},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/datasette/PYSEC-2025-73.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}