CVE-2026-87998 Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

CVE-2026-87998

Open WebUI (versions 0.10.0 through 0.11.1 ) contains an authorization flaw in the knowledge base deletion endpoint (DELETE /api/v1/knowledge/{id}/delete in backend/open_webui/routers/knowledge.py). The endpoint validates permissions against the knowledge base itself but then removes the associat...

CVE-2026-87017

Open WebUI , a self-hosted AI platform, contains an information disclosure flaw in its built-in knowledge search tool . From version 0.7.0 through 0.11.1 , the tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backen...

CVE-2026-87017 Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.1, the built-in knowledge search tool passed the caller's readable knowledge identifiers through a metadata filter, but the search methods in eleven shipped vector backends ignored that...

CVE-2026-87998: Improper Privilege Management

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/id/delete in backend/openwebui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection...

PT-2026-89175

Summary External knowledge connections are created and owned by administrators, and are shared by every external knowledge base bound to them. Deleting an external knowledge base also removed that connection from the instance configuration, with no check on the caller's role and no check for othe...

Kibana 8.19.11 < 8.19.21 / 9.3.x < 9.4.6 / 9.5.x < 9.5.2 Incorrect Authorization (ESA-2026-142)

The version of Kibana installed on the remote host is 8.19.11 prior to 8.19.21, or 9.3.x prior to 9.4.6, or 9.5.x prior to 9.5.2. It is, therefore, affected by a vulnerability as referenced in the ESA-2026-142 advisory. - Incorrect Authorization CWE-863 in Kibana can lead to unauthorized...

CVE-2026-86495

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

CVE-2026-86495

JetBrains YouTrack versions before 2026.2.18687 are affected by missing permission checks that allow a low-privileged user to create knowledge base articles in projects they cannot otherwise access. This results in a HIGH integrity impact (CVSS 3.1 score 6.5 MEDIUM , vector AV:N/AC:L/PR:L/UI:N/S:...

CVE-2026-86495

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

EUVD-2026-72511

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

CVE-2026-86495

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

PT-2026-86867

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

CVE-2026-86495: Missing Authorization

In JetBrains YouTrack before 2026.2.18687 missing permission checks allowed creating knowledge base articles in inaccessible projects...

CVE-2026-14470 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

CVE-2026-14470 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

CVE-2026-14470

IBM Langflow OSS versions 1.0.0 through 1.10.2 is vulnerable to a path traversal flaw (CWE-22) in its file and knowledge base components. An authenticated attacker can send a crafted URL request containing ../ sequences to read arbitrary files on the system. Per the IBM security bulletin, in the ...

CVE-2026-17621

IBM Langflow OSS versions 1.0.0 through 1.10.2 are affected by a path traversal vulnerability (CWE-22) in its file and knowledge base components. The root cause involves user-supplied path values not being validated against /../ sequences in the Directory component, the Knowledge Base connector i...

CVE-2026-17621 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences /.. / to view arbitrary files on the system...

CVE-2026-17621 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences /.. / to view arbitrary files on the system...