PT-2026-110715

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.11.0 through 0.11.3 Description The software uses a regex engine for its knowledge and chat file search tools that expands nested counted repetition unbounded at compile time and caches the result. Authenticated users can...

Danswer - Insecure Direct Object Reference Detection

The application does not verify whether the attacker is the creator of the file, allowing the attacker to directly call the GET /api/chat/file/fileid interface to view any user's file. !/usr/bin/env python3 -- coding: utf-8 -- """The application does not verify whether the attacker is the creator...

Open WebUI: Forged chat-file link allows cross-user file read and deletion

SummaryOpen WebUI v0.9.5 lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, hasaccesstofile treats the victim file as accessible...

PYSEC-2026-1979 Transformers vulnerable to ReDoS attack through its SETTING_RE variable

A Regular Expression Denial of Service ReDoS vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the SETTINGRE variable within the transformers/commands/chat.py file. The...

PYSEC-2026-1736 Open WebUI Vulnerable to Cross-Site Scripting (XSS) via Chat File Upload

A Stored Cross-Site Scripting XSS vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. An attacker can inject malicious content into a file, which, when accessed by a victim through a URL or shared chat, executes JavaScript in the victim's browser. Th...

CVE-2026-55418: Authorization Bypass Through User-Controlled Key

FastGPT is an open source AI knowledge base platform. Prior to v4.15.0-beta5, two FastGPT file handlers authorize an unrelated resource and then sign or read an S3 object using a key taken directly from the request, without checking that the key belongs to the caller's team. Because S3 object key...

CVE-2026-13508 khoj-ai khoj Conversation Sharing api_chat.py authorization

A flaw has been found in khoj-ai khoj up to 2.0.0-beta.28. This impacts an unknown function of the file src/khoj/routers/apichat.py of the component Conversation Sharing Handler. This manipulation of the argument conversation.agent causes incorrect authorization. Remote exploitation of the attack...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54010

CVE-2026-54010 affects Open WebUI prior to version 0.9.6. An authenticated user could attach arbitrary file_id values to their own chat messages without ownership/read checks, and then leverage a forged chat-file link to access or delete the victim’s file via shared-chat authorization. The root c...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

CVE-2026-54010 Open WebUI: Forged chat-file link allows cross-user file read and deletion

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares...

GHSA-VRHC-3FR6-PC3C Open WebUI: Forged chat-file link allows cross-user file read and deletion

Summary Open WebUI v0.9.5 lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, hasaccesstofile treats the victim file as accessible...

CVE-2026-42277

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/fileid endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file...

CVE-2026-8754 AstrBotDevs AstrBot File Upload chat.py post_file path traversal

A vulnerability was detected in AstrBotDevs AstrBot up to 4.23.5. Impacted is the function postfile of the file astrbot/dashboard/routes/chat.py of the component File Upload Handler. The manipulation of the argument filename results in path traversal. It is possible to launch the attack remotely...

CVE-2026-42277

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/fileid endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file...

CVE-2026-42277

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/fileid endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file...

CVE-2026-42277

Onyx (open‑source AI platform) contains an IDOR in the GET /chat/file/{file_id} endpoint. Before versions 3.0.9, 3.1.6, and 3.2.6, any authenticated user could download another user’s uploaded files by supplying the file’s UUID, because authentication is checked but ownership is not. The vulnerab...

CVE-2026-42277 Onyx: IDOR in /chat/file/{file_id} allows any authenticated user to download other users files

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/fileid endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file...

CVE-2026-42277 Onyx: IDOR in /chat/file/{file_id} allows any authenticated user to download other users files

Onyx is an open-source AI platform. Prior to versions 3.0.9, 3.1.6, and 3.2.6, the GET /chat/file/fileid endpoint allows any authenticated user to download any other user's uploaded files by providing the file UUID. The endpoint verifies the caller is authenticated but never checks that the file...

Onyx security vulnerabilities

Onyx is an open-source AI large model platform developed by Onyx. Vulnerabilities exist in versions prior to Onyx 3.0.9, 3.1.6, and 3.2.6. These vulnerabilities stem from the GET /chat/file/fileid endpoint, which validates the caller’s identity but does not check file ownership. This could allow...