GHSA-4G37-7P2C-38R9 Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

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 retrieval process, specifically when validating access to knowledge base collections by UUID. An attacker can access, modify, or delete another user's...

Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validatecollectionaccess PR 22109 checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any authenticated user who...

2026-05 .NET 9.0.16 Security Update for x64 Client (KB5093448)

2026-05 .NET 9.0.16 Security Update for x64 Client KB5093448...

2026-05 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5087538)

2026-05 Cumulative Update for Windows 10 Version 1809 for x64-based Systems KB5087538...

2026-05 .NET 10.0.8 Security Update for x64 Client (KB5093446)

2026-05 .NET 10.0.8 Security Update for x64 Client KB5093446...

2026-05 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 (KB5088863)

2026-05 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 KB5088863...

2026-05 .NET 10.0.8 Security Update for ARM64 Client (KB5093446)

2026-05 .NET 10.0.8 Security Update for ARM64 Client KB5093446...

2026-05 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1607 for x64 (KB5087065)

2026-05 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1607 for x64 KB5087065...

2026-05 Cumulative Update for Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5087545)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

2026-05 .NET 9.0.16 Security Update for x86 Client (KB5093448)

2026-05 .NET 9.0.16 Security Update for x86 Client KB5093448...

2026-05 Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 for x64 (KB5088860)

2026-05 Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 for x64 KB5088860...

2026-05 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5087538)

2026-05 Cumulative Update for Windows 10 Version 1809 for x86-based Systems KB5087538...

2026-05 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5087544)

2026-05 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems KB5087544...

2026-05 .NET 8.0.27 Security Update for x64 Client (KB5093447)

2026-05 .NET 8.0.27 Security Update for x64 Client KB5093447...

Langflow 路径遍历漏洞

Langflow is an open-source visualization framework developed by Langflow for building multi-agent and RAG applications. Versions of Langflow prior to 1.9.0 contained a path traversal vulnerability. This vulnerability stemmed from the path traversal in the knowledge base API, which could allow...

When LLMs Team Up: A Coordinated Attack Framework for Automated Cyber Intrusions

Automated intrusion-style workflows require LLM agents to reason over partial observations, tool outputs, and executable artifacts under bounded budgets. A single LLM instance often compresses evidence extraction, planning, execution, and validation into one context, which increases the risk of...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization in the processweb and processyoutube endpoints when the overwrite parameter is set to true and the collectionname is attacker-controlled. An attacker can overwrite or delete another user...

GHSA-7R82-QHG4-6WVJ Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite

Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite Affected Component Retrieval web/YouTube processing endpoints: - backend/openwebui/routers/retrieval.py lines 1810-1837, processweb - backend/openwebui/routers/retrieval.py the parallel processyoutube endpoint -...

Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite

Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite Affected Component Retrieval web/YouTube processing endpoints: - backend/openwebui/routers/retrieval.py lines 1810-1837, processweb - backend/openwebui/routers/retrieval.py the parallel processyoutube endpoint -...