PT-2026-67838

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.0 Description Open WebUI fails to properly validate user-supplied URLs when checking if a destination is globally routable. The system applies ipaddress.is global to literal IPv6 addresses but does not...

PT-2026-67904

Summary DELETE /api/v1/chats/id cancelled a chat's in-flight tasks before it checked whether the caller was allowed to delete that chat. Any authenticated user who knew another user's chat id could therefore abort that user's running model response, title generation or tag generation. The deletio...

CVE-2026-70483: Missing Authorization

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, DELETE /api/v1/chats/id cancelled a chat's in-flight tasks before checking whether the caller could delete that chat. Any authenticated user who knew another user's chat id could abort...

CVE-2026-70486: Improper Neutralization of Input During Web Page Generation

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, the terminal file-preview serveUrl iframe branch always granted allow-same-origin together with allow-scripts for HTML files served from the application origin. Any authenticated user wi...

PT-2026-67932

Summary The OAuth token exchange endpoint accepts a raw provider access token and validates it by calling the provider's userinfo endpoint. A userinfo endpoint reports only that a token is valid, never which OAuth client it was issued to, and the endpoint performed no audience or client check of...

PT-2026-67836

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.6 through 0.10.2 Description An issue exists where the DELETE /api/v1/chats/id endpoint cancels in-flight tasks before verifying if the caller has the necessary permissions to delete the chat. An authenticated user who...

PT-2026-67857

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.0 Description Automation recurrence parsing in backend/open webui/utils/automations.py anchors minutely and hourly rules to a fixed date of 2000-01-01. When calculating the next run, the system walks...

PT-2026-67839

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.10.2 Description An issue exists where the terminal file-preview serveUrl iframe branch grants allow-same-origin and allow-scripts permissions for HTML files served from the application origin. This occurs...

Chromium: CVE-2026-17888 Insufficient validation of untrusted input in WebUI

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

CVE-2026-17888

An insufficient validation of untrusted input flaw was found in the WebUI component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=523720529...

SUSE CVE-2026-17888

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

CVE-2026-17888

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

DEBIAN-CVE-2026-17888

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

CVE-2026-17888

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

CVE-2026-17888

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

CVE-2026-17888: Improper Input Validation

Insufficient validation of untrusted input in WebUI in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. Chromium security severity: Medium...

CVE-2026-13893

An insufficient validation of untrusted input flaw was found in the WebUI component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=501729582...

CVE-2026-44387

ELECOM wireless LAN routers and access points devices contain a reflected cross-site scripting vulnerability in WebUI. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser...

CVE-2026-44387: Improper Neutralization of Input During Web Page Generation

ELECOM wireless LAN routers and access points devices contain a reflected cross-site scripting vulnerability in WebUI. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser...

CVE-2026-59764: Improper Neutralization of Special Elements used in an OS Command

ELECOM wireless LAN routers and access points devices contain an OS Command Injection vulnerability in WebUI. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product...