CVE-2026-28788 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28788 Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the POST /api/v1/retrieval/process/files/batch endpoint. The endpoint performs no ownership check, so a...

CVE-2026-28786

Open WebUI is a self-hosted offline AI platform. CVE-2026-28786 affects versions prior to 0.8.6, where an unsanitized filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a FileNotFoundError. The error message can include the server’s abso...

CVE-2026-28786 Open WebUI vulnerable to Path Traversal in `POST /api/v1/audio/transcriptions`

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an unsanitized filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a FileNotFoundError whose message — including th...

CVE-2026-28786 Open WebUI vulnerable to Path Traversal in `POST /api/v1/audio/transcriptions`

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an unsanitized filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a FileNotFoundError whose message — including th...

PT-2026-28382

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.8.6 Description Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, any authenticated user can overwrite any file's content by ID through the...

PT-2026-28381

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.8.6 Description Open WebUI is a self-hosted artificial intelligence platform designed for offline operation. A flaw exists in the speech-to-text transcription endpoint where an unsanitized filename field allows a...

CVE-2026-31826 vulnerabilities

Vulnerabilities for packages: open-webui...

CVE-2026-32597 vulnerabilities

Vulnerabilities for packages: py3-cassandra-medusa, semgrep, ggshield, az, kserve, superset, open-webui, airflow, datadog-agent...

GHSA-3936-CMFR-PM3M vulnerabilities

Vulnerabilities for packages: open-webui, kserve...

CVE-2026-32274 vulnerabilities

Vulnerabilities for packages: open-webui, kserve...

GHSA-752W-5FWX-JX9F vulnerabilities

Vulnerabilities for packages: py3-cassandra-medusa, semgrep, ggshield, az, kserve, superset, open-webui, airflow, datadog-agent...

CVE-2025-15603

A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file backend/startwindows.bat of the component JWT Key Handler. Such manipulation of the argument WEBUISECRETKEY leads to insufficiently random values. It is possible to launch the attack...

EUVD-2025-208452

A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file backend/startwindows.bat of the component JWT Key Handler. Such manipulation of the argument WEBUISECRETKEY leads to insufficiently random values. It is possible to launch the attack...

Withdrawn Advisory: Open WebUI JWT Key Handler

Withdrawn Advisory This advisory has been withdrawn because it does not describe a valid vulnerability. This link is maintained to preserve external references. Original Description A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file...

GHSA-2RF6-9RC8-RQCH Withdrawn Advisory: Open WebUI JWT Key Handler

Withdrawn Advisory This advisory has been withdrawn because it does not describe a valid vulnerability. This link is maintained to preserve external references. Original Description A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file...

CVE-2025-15603

Open WebUI up to version 0.6.16 is reported to contain a security issue in the JWT Key Handler, specifically in the file backend/start_windows.bat. Manipulating the WEBUI_SECRET_KEY argument can lead to insufficient randomness in keys, potentially enabling remote exploitation. Multiple connected ...

CVE-2025-15603

REJECT DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The vendor explains: "The 't0p-s3cr3t' default was dead code on every supported startup path: start.sh, startwindows.ba...