{"id":"CVE-2025-64481","aliases":["EUVD-2025-38040","GHSA-w832-gg5g-x44m","PYSEC-2025-73"],"status":"published","title":"Open redirect endpoint in Datasette","description":"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.","severity":{"version":"4.0","score":2.7,"vector":"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","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00411,"percentile":0.35684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2025-11-06T15:13:33Z","modified":"2026-10-28T02:30:23Z","fixes":[{"ecosystem":"PyPI","package":"datasette","fixed_in":["0.65.2","1.0a20","1.0a21"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"datasette","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.65.2"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"datasette","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0a0"},{"fixed":"1.0a20"}]}]},{"source":"osv","ecosystem":"PyPI","package":"datasette","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.65.2"}]}],"versions":["0.10","0.11","0.12","0.13","0.14","0.15","0.16","0.17","0.18","0.19","0.20","0.21","0.22","0.22.1","0.23","0.23.1","0.23.2","0.24","0.25","0.25.1","0.25.2","0.26","0.26.1","0.26.2","0.27","0.27.1","0.28","0.29","0.29.1","0.29.2","0.29.3","0.30","0.30.1","0.30.2","0.31","0.31.1","0.31.2","0.32","0.33","0.34","0.35","0.36","0.37","0.37.1","0.38","0.39","0.40","0.41","0.42","0.43","0.44","0.45","0.45a0","0.45a1","0.45a2","0.45a3","0.45a4","0.45a5","0.46","0.47","0.47.1","0.47.2","0.47.3","0.48","0.49","0.49.1","0.49a0","0.49a1","0.50","0.50.1","0.50.2","0.50a0","0.50a1","0.51","0.51.1","0.51a0","0.51a1","0.51a2","0.52","0.52.1","0.52.2","0.52.3","0.52.4","0.52.5","0.53","0.54","0.54.1","0.54a0","0.55","0.56","0.56.1","0.57","0.57.1","0.57a0","0.57a1","0.58","0.58.1","0.58a0","0.58a1","0.59","0.59.1","0.59.2","0.59.3","0.59.4","0.59a0","0.59a1","0.59a2","0.60","0.60.1","0.60.2","0.60a0","0.60a1","0.61","0.61.1","0.61a0","0.62","0.62a0","0.62a1","0.63","0.63.1","0.63.2","0.63.3","0.63a0","0.63a1","0.64","0.64.1","0.64.2","0.64.3","0.64.4","0.64.5","0.64.6","0.64.7","0.64.8","0.65","0.65.1","0.8","0.9"]},{"source":"osv","ecosystem":"PyPI","package":"datasette","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0a0"},{"fixed":"1.0a21"}]}],"versions":["1.0a0","1.0a1","1.0a10","1.0a11","1.0a12","1.0a13","1.0a14","1.0a15","1.0a16","1.0a17","1.0a18","1.0a19","1.0a2","1.0a20","1.0a3","1.0a4","1.0a5","1.0a6","1.0a7","1.0a8","1.0a9"]},{"source":"osv","ecosystem":"PyPI","package":"datasette"}],"products":[{"vendor":"simonw","product":"datasette"}],"references":[{"url":"https://github.com/simonw/datasette/security/advisories/GHSA-w832-gg5g-x44m","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/simonw/datasette/issues/2429","tags":["x_refsource_MISC","report","web"]},{"url":"https://github.com/simonw/datasette/commit/f257ca6edb64848c3b04b54d41e347c54fe57c05","tags":["x_refsource_MISC","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64481","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/datasette/PYSEC-2025-73.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-w832-gg5g-x44m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64481.json","tags":["advisory"]},{"url":"https://github.com/simonw/datasette","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-64481","title":"Open redirect endpoint in Datasette","description":"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.","status":"published","published":"2025-11-07T20:35:39.827Z","modified":"2025-12-26T21:51:26.384Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:32:46.750177Z"}],"euvd":[{"id":"EUVD-2025-38040","description":"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.","status":"published","published":"2025-11-07T20:35:39Z","modified":"2025-12-26T21:51:26Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low"}],"updated_at":"2026-11-02T19:49:00.939401Z"}],"ghsa":[{"id":"GHSA-w832-gg5g-x44m","title":"Open redirect endpoint in Datasette","description":"### Impact\n\nDeployed instances of Datasette prior to `0.65.2` and `1.0a21` include an open redirect vulnerability.\n\nHits to the path `//example.com/foo/bar/` (the trailing slash is required) will redirect the user to `https://example.com/foo/bar`.\n\n### Patches\n\nThis problem has been patched in both Datasette `0.65.2` and `1.0a21`.\n\n### Workarounds\n\nIf Datasette is running behind a proxy that proxy could be configured to replace `//` with `/` in incoming request URLs.","status":"published","published":"2025-11-06T15:13:33Z","modified":"2026-05-19T20:23:12Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:40:12.430932Z"}],"nvd":[{"id":"CVE-2025-64481","description":"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.","status":"published","published":"2025-11-07T21:15:42.01Z","modified":"2026-06-17T09:54:26.21Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low","assessor":"secondary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:11:42.870953Z"}],"osv":[{"id":"CVE-2025-64481","title":"Open redirect endpoint in Datasette","description":"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.","status":"published","published":"2025-11-07T20:35:39.827Z","modified":"2026-10-28T02:30:23.831364297Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:44:51.851511Z"},{"id":"GHSA-w832-gg5g-x44m","title":"Open redirect endpoint in Datasette","description":"### Impact\n\nDeployed instances of Datasette prior to `0.65.2` and `1.0a21` include an open redirect vulnerability.\n\nHits to the path `//example.com/foo/bar/` (the trailing slash is required) will redirect the user to `https://example.com/foo/bar`.\n\n### Patches\n\nThis problem has been patched in both Datasette `0.65.2` and `1.0a21`.\n\n### Workarounds\n\nIf Datasette is running behind a proxy that proxy could be configured to replace `//` with `/` in incoming request URLs.","status":"published","published":"2025-11-06T15:13:33Z","modified":"2026-05-19T20:30:23.79329956Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:58.401149Z"},{"id":"PYSEC-2025-73","description":"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.","status":"published","published":"2025-11-07T21:15:42.01Z","modified":"2026-05-19T05:15:05.313924531Z","cvss":[{"version":"4.0","score":2.7,"vector":"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","level":"low"}],"updated_at":"2026-11-02T15:52:54.242332Z"}]}}