{"id":"CVE-2025-32962","aliases":["EUVD-2025-15450","GHSA-99pm-ch96-ccp2","PYSEC-2026-1379","ROOT-APP-PYPI-CVE-2025-32962"],"status":"published","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. 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Advisory","advisory","web"]},{"url":"https://github.com/dpgaspar/Flask-AppBuilder/commit/32eedbbb5cb483a3e782c5f2732de4a6a650d9b6","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32962","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-99pm-ch96-ccp2","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32962.json","tags":["advisory"]},{"url":"https://github.com/dpgaspar/Flask-AppBuilder","tags":["package"]},{"url":"https://pypi.org/project/flask-appbuilder","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-32962","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.","status":"published","published":"2025-05-16T13:51:55.581Z","modified":"2025-05-16T14:53:52.917Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:32:46.109993Z"}],"euvd":[{"id":"EUVD-2025-15450","description":"Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.","status":"published","published":"2025-05-16T13:51:55Z","modified":"2025-05-16T14:53:52Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:45.606938Z"}],"ghsa":[{"id":"GHSA-99pm-ch96-ccp2","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"### Impact\nFlask-AppBuilder prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests.\n \n### Patches\nFlask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection.\n\nExamples:\n```\nFAB_SAFE_REDIRECT_HOSTS = [\"yourdomain.com\", \"sub.yourdomain.com\", \"*.yourcompany.com\"]\n```\n\n### Workarounds\nUse a Reverse Proxy to Enforce Trusted Host Headers\n\n### References\n_Are there any links users can visit to find out more?_","status":"published","published":"2025-05-16T17:28:25Z","modified":"2025-05-16T17:28:26Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:38:43.998596Z"}],"nvd":[{"id":"CVE-2025-32962","description":"Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.","status":"published","published":"2025-05-16T14:15:31.19Z","modified":"2026-06-17T09:12:52.287Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:11:08.321805Z"}],"osv":[{"id":"CVE-2025-32962","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests. Flask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection. As a workaround, use a reverse proxy to enforce trusted host headers.","status":"published","published":"2025-05-16T13:51:55.581Z","modified":"2026-10-28T02:31:12.833478319Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:44:48.02508Z"},{"id":"GHSA-99pm-ch96-ccp2","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"### Impact\nFlask-AppBuilder prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests.\n \n### Patches\nFlask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection.\n\nExamples:\n```\nFAB_SAFE_REDIRECT_HOSTS = [\"yourdomain.com\", \"sub.yourdomain.com\", \"*.yourcompany.com\"]\n```\n\n### Workarounds\nUse a Reverse Proxy to Enforce Trusted Host Headers\n\n### References\n_Are there any links users can visit to find out more?_","status":"published","published":"2025-05-16T17:28:25Z","modified":"2026-09-10T03:50:57.462278194Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:43.524801Z"},{"id":"PYSEC-2026-1379","title":"Flask-AppBuilder open redirect vulnerability using HTTP host injection","description":"### Impact\nFlask-AppBuilder prior to 4.6.2 would allow for a malicious unauthenticated actor to perform an open redirect by manipulating the Host header in HTTP requests.\n \n### Patches\nFlask-AppBuilder 4.6.2 introduced the `FAB_SAFE_REDIRECT_HOSTS` configuration variable, which allows administrators to explicitly define which domains are considered safe for redirection.\n\nExamples:\n```\nFAB_SAFE_REDIRECT_HOSTS = [\"yourdomain.com\", \"sub.yourdomain.com\", \"*.yourcompany.com\"]\n```\n\n### Workarounds\nUse a Reverse Proxy to Enforce Trusted Host Headers\n\n### References\n_Are there any links users can visit to find out more?_","status":"published","published":"2026-07-07T16:02:52.688627Z","modified":"2026-07-07T17:47:36.773629556Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:54.622769Z"},{"id":"ROOT-APP-PYPI-CVE-2025-32962","title":"CVE-2025-32962 in rootio-Flask-AppBuilder - Patched by Root","description":"Root has patched CVE-2025-32962 in the rootio-Flask-AppBuilder package for Root:PyPI. Multiple fixed versions available.","status":"published","published":"2026-06-03T14:52:56Z","modified":"2026-06-03T19:30:06.540750555Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:27.940619Z"}]}}