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

IDOR: Retrieval API Bypasses Knowledge Base Access ControlsAuthor: Andrew Orr Summaryvalidatecollectionaccess 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 know...

PT-2026-59351

Global Knowledge Base Enumeration via knowledge-bases Meta-Collection Affected Component Retrieval collection access validation: - backend/open webui/routers/retrieval.py lines 2330-2355, validate collection access - backend/open webui/routers/retrieval.py query endpoints, e.g. POST /query/doc...

PT-2026-59344

IDOR: Retrieval API Bypasses Knowledge Base Access Controls Author: Andrew Orr Summary validate collection access 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...

CVE-2026-59705

mem0's openmemory/api component contains an unauthenticated access vulnerability that allows unauthenticated attackers to read, write, and delete arbitrary user memories by accessing API routers registered without authentication middleware. Attackers can supply arbitrary userid parameters or...

PT-2026-56280

Name of the Vulnerable Software and Affected Versions mem0 openmemory/api affected versions not specified Description The openmemory/api component allows unauthenticated access to API routers that lack authentication middleware. This enables attackers to read, write, and delete arbitrary user...

CVE-2026-45398

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

CVE-2026-45398

Summary (concrete details from provided docs): Open WebUI before 0.9.5 exposes an IDOR vulnerability in the retrieval API where knowledge base collections (UUID-named) are not checked by _validate_collection_access. This allows any authenticated user who knows a private knowledge base UUID to rea...

CVE-2026-45398 Open WebUI: IDOR - Retrieval API Bypasses Knowledge Base Access Controls

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

EUVD-2026-30634

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

CVE-2026-45398

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

CVE-2026-45398 Open WebUI: IDOR - Retrieval API Bypasses Knowledge Base Access Controls

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

CVE-2026-45398 Open WebUI: IDOR - Retrieval API Bypasses Knowledge Base Access Controls

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, validatecollectionaccess checks the user-memory- and file- collection name prefixes but does not check knowledge base collections, which use raw UUIDs as collection names. Any...

CVE-2026-44557

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the validatecollectionaccess function uses an incomplete allowlist that only enforces ownership checks for collections matching user-memory- and file- patterns. All other collection...

EUVD-2026-30620

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the validatecollectionaccess function uses an incomplete allowlist that only enforces ownership checks for collections matching user-memory- and file- patterns. All other collection...

CVE-2026-44557 Open WebUI: Global Knowledge Base Enumeration via knowledge-bases Meta-Collection

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the validatecollectionaccess function uses an incomplete allowlist that only enforces ownership checks for collections matching user-memory- and file- patterns. All other collection...

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 0.9.5 contained security vulnerabilities. These vulnerabilities stemmed from the collectionaccess verification function not checking the knowledge base collection. As ...

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...

GoJobs API 访问控制错误漏洞

The GoJobs API is a high-performance job platform REST API developed by Manav Mahesh Sanger. The GoJobs API has an access control vulnerability, which stems from the lack of authentication and authorization checks in the job retrieval endpoints. This vulnerability may allow unauthorized users to...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization via the validatecollectionaccess function. An attacker can obtain sensitive metadata, such as IDs, names, and descriptions of all knowledge bases across users, by sending crafted API...

PT-2026-41193

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.8.12 Description An Insecure Direct Object Reference IDOR exists in the retrieval API due to insufficient validation in the validate collection access function. While the function checks specific prefixes for use...