CVE-2026-45350

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, there is a vulnerability in chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. In the chatcompletion API, t...

CVE-2026-44571

CVE-2026-44571 concerns the Open WebUI platform. In standard channels, the endpoint POST /api/v1/channels/{channel_id}/messages/{message_id}/update could be invoked with only read permission if access_control is None, allowing unauthorized users to modify other users’ messages. The issue is fixed...

CVE-2026-44571 Open WebUI: Improper Authorization in Standard Channels Allows Message Updates with Read Permission

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, in standard channels i.e., channels whose channel.type is neither group nor dm, the endpoint POST /api/v1/channels/channelid/messages/messageid/update can be accessed with read...

EUVD-2026-30655

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, in standard channels i.e., channels whose channel.type is neither group nor dm, the endpoint POST /api/v1/channels/channelid/messages/messageid/update can be accessed with read...

CVE-2026-44571

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, in standard channels i.e., channels whose channel.type is neither group nor dm, the endpoint POST /api/v1/channels/channelid/messages/messageid/update can be accessed with read...

CVE-2026-44571 Open WebUI: Improper Authorization in Standard Channels Allows Message Updates with Read Permission

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, in standard channels i.e., channels whose channel.type is neither group nor dm, the endpoint POST /api/v1/channels/channelid/messages/messageid/update can be accessed with read...

EUVD-2026-30652

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.6, there is a vulnerability in chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. In the chatcompletion API, t...

Open WebUI 安全漏洞

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted WebUI under open source. Versions of Open WebUI prior to 0.8.6 contained security vulnerabilities. These vulnerabilities stemmed from the chat completion API, where tool IDs and server parameters were provided by users witho...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization via the chatcompletion API when user-supplied toolids or toolservers parameters are processed without verifying the user's permissions. An attacker can gain unauthorized access to...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization in the updatemessagebyid process. An attacker can modify messages authored by other users by sending a request to the message update endpoint with only read permissions in a standard...

Astra Linux - уязвимость в netcdf

A issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxmlinternaldtd performs incorrect memory handling during the parsing of crafted XML files, resulting in a one-byte constant being written beyond the bounds of the memory area...

Astra Linux - уязвимость в netcdf

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxmldecode performs incorrect memory handling while parsing crafted XML files, leading to a heap-based buffer overflow...

[SECURITY] Fedora 42 Update: libopenmpt-0.8.6-1.fc42

libopenmpt is a cross-platform C++ and C library to decode tracked music files modules into a raw PCM audio stream. libopenmpt is based on the player code of the OpenMPT project Open ModPlug Tracker. In order to avoid code base fragmentation, libopenmpt is developed in the same source code...

CVE-2026-29070

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base or is admin,...

CVE-2026-28786

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-2026-28788

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...

Authorization Bypass Through User-Controlled Key

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the querycollectionhandler function. An attacker can access other users' private documents, metadata, and personal memories by submitting crafted requests t...

EUVD-2026-16486

Open WebUI's Insecure Direct Object Reference IDOR allows access to other users' memories...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization due to missing validation in the removefilefromknowledgebyid function. An attacker can delete arbitrary files from other users' knowledge bases by providing the file ID, even if the file...

EUVD-2026-16484

Open WebUI has unauthorized deletion of knowledge files...