Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends

Summary The built-in knowledge search tool returns knowledge bases the calling user has no access to. The tool works out which knowledge bases the caller may read and hands that set to the vector store as a search filter, and that filter is the only access control on the path. Most of the shipped...

GHSA-PCVC-8VRV-8Q6W Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends

Summary The built-in knowledge search tool returns knowledge bases the calling user has no access to. The tool works out which knowledge bases the caller may read and hands that set to the vector store as a search filter, and that filter is the only access control on the path. Most of the shipped...

EUVD-2026-75180

Open WebUI: SSRF into internal services via DNS rebinding in the Playwright web loader...

EUVD-2026-75181

Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions...

GHSA-3PF7-Q2G3-WJ28 Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions

Summary The chat-completions endpoint reads a folder id out of the request body and saves the newly created chat into that folder without checking that the caller is allowed to write there. Any authenticated user who knows a folder's id can put a chat of their own into another user's folder,...

Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

Summary Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through thi...

GHSA-4QG5-CXX4-G927 Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange

Summary Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without applying the email domain allowlist that the normal OAuth login callback enforces. An account whose email domain the login callback would refuse could still obtain a working session through thi...

GHSA-Q5J5-6P94-4GWC Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation

Streaming GetRows row-bound bypass causes attacker-controlled allocation Summary Excelize's prior row-bound fix for GHSA-h69g / CVE-2026-54063 protects the checked worksheet parser, but the streaming worksheet reader used by Rows and GetRows does not enforce the same TotalRows bound on the row r...

Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation

Streaming GetRows row-bound bypass causes attacker-controlled allocation Summary Excelize's prior row-bound fix for GHSA-h69g / CVE-2026-54063 protects the checked worksheet parser, but the streaming worksheet reader used by Rows and GetRows does not enforce the same TotalRows bound on the row r...

Security Bulletin: IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.

Summary IBM Navigator for i and IBM Digital Certificate Manager DCM for i use Angular for frontend Graphical User Interfaces GUI. Angular is vulnerable to cross-site scripting XSS by permitting event-handler attributes in the i18n pipeline, allowing a lower-trust translation file to inject...

CVE-2026-88009 Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

CVE-2026-88009

Traefik , an open-source HTTP reverse proxy and load balancer, is affected by a request-target handling flaw prior to 2.11.57 and 3.7.13 . A rootless HTTP/1 request target is stored by Go in URL.Opaque while URL.Path remains empty. The rewriteRequestBuilder evaluates routing, path sanitization, f...

CVE-2026-88009

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

EUVD-2026-75578

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

CVE-2026-88009 Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

CVE-2026-88009 Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.57, and 3.7.13, Traefik accepts a rootless HTTP/1 request target that Go stores in URL.Opaque while leaving URL.Path empty. The rewriteRequestBuilder path evaluates routing, path sanitization, forwardAuth,...

CVE-2026-88008

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...

CVE-2026-88008 Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect Authorization

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...

EUVD-2026-75545

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...

CVE-2026-88008 Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect Authorization

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...