GHSA-3VF6-64VR-3G56 Open WebUI: Any authenticated user can cancel another user's chat generation via the chat delete endpoint

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 Open WebUI: Any authenticated user can cancel another user's chat generation via the chat delete endpoint

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-2026-70483

Open WebUI (self-hosted AI platform) contained an authorization bypass in the delete_chat_by_id handler (backend/open_webui/routers/chats.py) serving DELETE /api/v1/chats/{id}. The in-flight task cancellation was placed before ownership and permission checks, so any authenticated user with the de...

CVE-2026-70483 Open WebUI: Any authenticated user can cancel another user's chat generation via the chat delete endpoint

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...

EUVD-2026-52888

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-2026-70483

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-2026-70482

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLEOAUTHTOKENEXCHANGE=True, /oauth/provider/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which...

EUVD-2026-52885

An improper certificate validation vulnerability was reported in multiple Lenovo XClarity Orchestrator LXCO 2.2.0 microservices that could allow an adjacent network attacker to intercept sensitive communications by performing a machine-in-the-middle attack against HTTPS connections during TLS...

CVE-2026-16792 Global TLS Certificate Validation Bypass in Lenovo XClarity Orchestrator

An improper certificate validation vulnerability was reported in multiple Lenovo XClarity Orchestrator LXCO 2.2.0 microservices that could allow an adjacent network attacker to intercept sensitive communications by performing a machine-in-the-middle attack against HTTPS connections during TLS...

CVE-2026-70481 Open WebUI: Any member with write access to a standard channel can edit or delete other members' messages

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access i...

CVE-2026-70475 Flowise: Missing Authorization on Execution Update Endpoint

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the PUT /api/v1/executions/:id endpoint in packages/server/src/routes/executions/index.ts lacks the checkAnyPermission middleware that protects other execution endpoints. Any authenticated use...

MITM (Man-in-the-Middle) io.netty:netty-handler Dependency in Jira Service Management Data Center and Server

This MITM Man-in-the-Middle vulnerability was introduced in versions 5.17.0, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Service Management Data Center and Server. This MITM Man-in-the-Middle vulnerability, with a CVSS Score of 7.5 an...

CGA-4HX9-47MF-JR9V

Bulletin has no description...

CVE-2026-15337

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. django.utils.translation.checkforlanguage is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory...

CVE-2026-15337

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. django.utils.translation.checkforlanguage is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory...

CVE-2026-15337 Potential denial-of-service vulnerability in check_for_language()

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. django.utils.translation.checkforlanguage is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory...

CVE-2026-15337

Technical details are not publicly available in the provided documents. Monitor for updates.

CVE-2026-15337 Potential denial-of-service vulnerability in check_for_language()

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. django.utils.translation.checkforlanguage is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory...

CVE-2026-69254

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.ts. An authenticated attacker reaching...

CVE-2026-69254 Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.ts. An authenticated attacker reaching...