Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

Summary An authenticated low-privilege user can execute arbitrary code-interpreter Python and tools inside another user's authenticated session. The Socket.IO event-caller geteventcall delivers execute:python / execute:tool events to a client-supplied sessionid after only checking that the sessio...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization through the geteventcall process. An attacker can execute arbitrary code and tools in another user's authenticated session by supplying a victim's sessionid and leveraging the lack of...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization through the chat completion process. An attacker can overwrite messages in channels they do not belong to, including private and direct message channels, by supplying a crafted chatid an...

EUVD-2026-42625

Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout...

Insufficient Session Expiration

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Insufficient Session Expiration in the realtime authentication process. An attacker can maintain unauthorized access to realtime features by using a JWT that has been revoked via sign-out or back-channel...

EUVD-2026-42618

Open WebUI: POST /api/v1/images/edit bypasses the global image-edit switch and the per-user image-generation permission...

Open WebUI: POST /api/v1/images/edit bypasses the global image-edit switch and the per-user image-generation permission

Summary POST /api/v1/images/edit performed no authorization beyond requiring a verified account. Every other image-editing surface in Open WebUI enforces the global image-edit switch and the per-user image-generation permission — the /api/v1/images/generations route, the built-in editimage tool,...

Incorrect Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Authorization via the /api/v1/images/edit route. An attacker can trigger server-side image editing operations using administrator-configured credentials, even when global image editing is disabled o...

GHSA-FFPJ-XV5C-P3GW Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config

Summary Two regexes in backend/openwebui/utils/middleware.py that parse skill-mention tags backtrack in On² on input that contains . Both run synchronously, on the asyncio event loop, on every chat completion with no feature gate. Because the default deployment is a single uvicorn worker, one suc...

EUVD-2026-42620

Open WebUI: Scheduled automations continue after pending-user deactivation and stored model ACL revocation...

Timing Attack

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Timing Attack via the signin process. An attacker can determine whether specific email addresses are registered by measuring the response time of authentication attempts. Remediation Upgrade open-webui to...

EUVD-2026-42616

Open WebUI: Stored web worker XSS via Pyodide...

CVE-2026-59203 vulnerabilities

Vulnerabilities for packages: open-webui, mlflow, superset...

GHSA-PG7V-JWJ7-P798 vulnerabilities

Vulnerabilities for packages: open-webui, mlflow, superset...

PYSEC-2026-3543 Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints

Summary Open WebUI allows admins to restrict which API endpoints an API key can access. When an API key is restricted from /api/v1/messages, requests using the Authorization: Bearer sk-... header are correctly blocked with 403. However, the same key sent via the x-api-key header bypasses the...

Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints

SummaryOpen WebUI allows admins to restrict which API endpoints an API key can access. When an API key is restricted from /api/v1/messages, requests using the Authorization: Bearer sk-... header are correctly blocked with 403. However, the same key sent via the x-api-key header bypasses the...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in the WebUI of Google Chrome on Linux, Mac, Windows, and ChromeOS prior to version 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to bypass site isolation through a crafted HTML page. Chromium security severity: Medium...

CVE-2026-61269

Vulnerability in the Oracle Product Workbench product of Oracle E-Business Suite component: WebUI. Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Product Workbench. Successf...

CVE-2026-61269: Improper Access Control

Vulnerability in the Oracle Product Workbench product of Oracle E-Business Suite component: WebUI. Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Product Workbench. Successf...

PT-2026-63131

Vulnerability in the Oracle Product Workbench product of Oracle E-Business Suite component: WebUI. Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Product Workbench. Successf...