{"id":"CVE-2024-49766","aliases":["BELL-CVE-2024-49766","CLSA-2026-1772410262","CLSA-2026-1772583181","CLSA-2026-1789453348","EUVD-2024-3031","GHSA-f9vj-2wh5-fj8j","PYSEC-2026-2045","ROOT-APP-PYPI-CVE-2024-49766"],"status":"published","title":"Werkzeug safe_join not safe on Windows","description":"Werkzeug is a Web Server Gateway Interface web application library. On Python \u003c 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00776,"percentile":0.56241,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2024-10-25T19:22:36Z","modified":"2026-10-28T02:30:42Z","fixes":[{"ecosystem":"PyPI","package":"werkzeug","fixed_in":["3.0.6"],"sources":["ghsa","osv"]},{"ecosystem":"Root:PyPI","package":"rootio-Werkzeug","fixed_in":["2.3.7+root.io.2","2.3.7+root.io.3","2.3.7+root.io.4","2.3.7+root.io.5","2.3.7+root.io.6"],"sources":["osv"]},{"ecosystem":"Root:PyPI","package":"Werkzeug","fixed_in":["2.3.7+aikido.6"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.0.5"},{"fixed":"3.0.6"}]}]},{"source":"osv","ecosystem":"TuxCare:PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.1"},{"fixed":"1.0.1.post1+tuxcare"}]}],"versions":["1.0.1"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.2.3"},{"fixed":"2.2.3.post3+tuxcare"}]}],"versions":["2.2.3","2.2.3.post1+tuxcare"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.3.8"},{"fixed":"2.3.8.post3+tuxcare"}]}],"versions":["2.3.8","2.3.8.post1+tuxcare","2.3.8.post2+tuxcare"],"bundled":4},{"source":"osv","ecosystem":"PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.6"}]}],"versions":["0.1","0.10","0.10.1","0.10.2","0.10.3","0.10.4","0.11","0.11.1","0.11.10","0.11.11","0.11.12","0.11.13","0.11.14","0.11.15","0.11.2","0.11.3","0.11.4","0.11.5","0.11.6","0.11.7","0.11.8","0.11.9","0.12","0.12.1","0.12.2","0.13","0.14","0.14.1","0.15.0","0.15.1","0.15.2","0.15.3","0.15.4","0.15.5","0.15.6","0.16.0","0.16.1","0.2","0.3","0.3.1","0.4","0.4.1","0.5","0.5.1","0.6","0.6.1","0.6.2","0.7","0.7.1","0.7.2","0.8","0.8.1","0.8.2","0.8.3","0.9","0.9.1","0.9.2","0.9.3","0.9.4","0.9.5","0.9.6","1.0.0","1.0.0rc1","1.0.1","2.0.0","2.0.0rc1","2.0.0rc2","2.0.0rc3","2.0.0rc4","2.0.0rc5","2.0.1","2.0.2","2.0.3","2.1.0","2.1.1","2.1.2","2.2.0","2.2.0a1","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5"]},{"source":"osv","ecosystem":"PyPI","package":"werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.6"}]}],"versions":["0.1","0.10","0.10.1","0.10.2","0.10.3","0.10.4","0.11","0.11.1","0.11.10","0.11.11","0.11.12","0.11.13","0.11.14","0.11.15","0.11.2","0.11.3","0.11.4","0.11.5","0.11.6","0.11.7","0.11.8","0.11.9","0.12","0.12.1","0.12.2","0.13","0.14","0.14.1","0.15.0","0.15.1","0.15.2","0.15.3","0.15.4","0.15.5","0.15.6","0.16.0","0.16.1","0.2","0.3","0.3.1","0.4","0.4.1","0.5","0.5.1","0.6","0.6.1","0.6.2","0.7","0.7.1","0.7.2","0.8","0.8.1","0.8.2","0.8.3","0.9","0.9.1","0.9.2","0.9.3","0.9.4","0.9.5","0.9.6","1.0.0","1.0.0rc1","1.0.1","2.0.0","2.0.0rc1","2.0.0rc2","2.0.0rc3","2.0.0rc4","2.0.0rc5","2.0.1","2.0.2","2.0.3","2.1.0","2.1.1","2.1.2","2.2.0","2.2.0a1","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5"]},{"source":"osv","ecosystem":"Root:PyPI","package":"rootio-Werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7+root.io.2"},{"fixed":"2.3.7+root.io.3"},{"fixed":"2.3.7+root.io.4"},{"fixed":"2.3.7+root.io.5"},{"fixed":"2.3.7+root.io.6"}]}]},{"source":"osv","ecosystem":"Root:PyPI","package":"Werkzeug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7+aikido.6"}]}]}],"products":[{"vendor":"pallets","product":"werkzeug"},{"vendor":"palletsprojects","product":"werkzeug"}],"references":[{"url":"https://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/pallets/werkzeug/releases/tag/3.0.6","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://security.netapp.com/advisory/ntap-20250131-0005/","tags":["Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-49766","tags":["advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20250131-0005","tags":["web"]},{"url":"https://github.com/advisories/GHSA-f9vj-2wh5-fj8j","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2024-49766","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49766.json","tags":["advisory"]},{"url":"https://github.com/pallets/werkzeug","tags":["package"]},{"url":"https://pypi.org/project/werkzeug","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-49766","title":"Werkzeug safe_join not safe on Windows","description":"Werkzeug is a Web Server Gateway Interface web application library. On Python \u003c 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.","status":"published","published":"2024-10-25T19:22:36.38Z","modified":"2025-01-31T15:02:48.308Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:33:56.402064Z"}],"euvd":[{"id":"EUVD-2024-3031","description":"Werkzeug is a Web Server Gateway Interface web application library. On Python \u003c 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.","status":"published","published":"2024-10-25T19:22:36Z","modified":"2025-01-31T15:02:48Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-03T00:04:08.172652Z"}],"ghsa":[{"id":"GHSA-f9vj-2wh5-fj8j","title":"Werkzeug safe_join not safe on Windows","description":"On Python \u003c 3.11 on Windows, `os.path.isabs()` does not catch UNC paths like `//server/share`. Werkzeug's `safe_join()` relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable.","status":"published","published":"2024-10-25T19:43:41Z","modified":"2025-01-31T15:30:43Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:38:28.945236Z"}],"nvd":[{"id":"CVE-2024-49766","description":"Werkzeug is a Web Server Gateway Interface web application library. On Python \u003c 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.","status":"published","published":"2024-10-25T20:15:04.41Z","modified":"2026-06-17T08:00:24.517Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:10:34.877798Z"}],"osv":[{"id":"BELL-CVE-2024-49766","title":"CVE-2024-49766 does not affect BellSoft software","status":"withdrawn","published":"2024-10-26T05:57:20.812644Z","modified":"2026-01-26T09:49:10.321424Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:20.711507Z"},{"id":"CVE-2024-49766","title":"Werkzeug safe_join not safe on Windows","description":"Werkzeug is a Web Server Gateway Interface web application library. On Python \u003c 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.","status":"published","published":"2024-10-25T19:22:36.38Z","modified":"2026-10-28T02:30:42.451330851Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:44:43.597758Z"},{"id":"GHSA-f9vj-2wh5-fj8j","title":"Werkzeug safe_join not safe on Windows","description":"On Python \u003c 3.11 on Windows, `os.path.isabs()` does not catch UNC paths like `//server/share`. Werkzeug's `safe_join()` relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable.","status":"published","published":"2024-10-25T19:43:41Z","modified":"2026-09-10T03:50:19.894904779Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:46.39441Z"},{"id":"PYSEC-2026-2045","title":"Werkzeug safe_join not safe on Windows","description":"On Python \u003c 3.11 on Windows, `os.path.isabs()` does not catch UNC paths like `//server/share`. Werkzeug's `safe_join()` relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python \u003e= 3.11, or not using Windows, are not vulnerable.","status":"published","published":"2026-07-07T14:34:43.390514Z","modified":"2026-07-07T17:47:56.415783418Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T15:52:55.537808Z"},{"id":"ROOT-APP-PYPI-CVE-2024-49766","title":"CVE-2024-49766 in rootio-Werkzeug - Patched by Root","description":"Root has patched CVE-2024-49766 in the rootio-Werkzeug package for Root:PyPI. Multiple fixed versions available.","status":"published","published":"2026-06-03T19:10:26Z","modified":"2026-06-04T02:00:05.137628455Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:27.940619Z"},{"id":"CLSA-2026-1772410262","title":"TuxCare security update for werkzeug (3 CVEs)","description":"TuxCare rebuilt werkzeug to address 3 CVEs. Fixed in 1.0.1.post1+tuxcare.","status":"published","published":"2026-08-04T14:52:08Z","modified":"2026-10-15T09:47:58.794955221Z","updated_at":"2026-11-02T15:43:43.249928Z"},{"id":"CLSA-2026-1772583181","title":"TuxCare security update for werkzeug (2 CVEs)","description":"TuxCare rebuilt werkzeug to address 2 CVEs. Fixed in 2.2.3.post3+tuxcare.","status":"published","published":"2026-08-04T14:52:09Z","modified":"2026-10-15T09:48:05.106289572Z","updated_at":"2026-11-02T15:43:43.249928Z"},{"id":"CLSA-2026-1789453348","title":"TuxCare security update for werkzeug (4 CVEs)","description":"TuxCare rebuilt werkzeug to address 4 CVEs. Fixed in 2.3.8.post3+tuxcare.","status":"published","published":"2026-09-15T06:22:28Z","modified":"2026-10-15T09:48:01.720371915Z","updated_at":"2026-11-02T15:43:47.938828Z"}]}}