CVE-2026-70488

Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, the sync cleanup endpoint authorized write access to the knowledge base in the URL but then acted on directory and file ids supplied in the request body without checking that those objects belonged to that knowledge base. A user with write access to one knowledge base could delete directories and remove file embeddings from another knowledge base, causing documents to drop out of retrieval results and breaking chat-with-file for targeted documents without disclosing contents. This issue is fixed in 0.11.0.

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Produits concernés

• open-webui
• Openwebui open webui

Scores CVSS

Faiblesses (CWE)

• CWE-639
• CWE-863

Références

• https://github.com/open-webui/open-webui/commit/707efeaed7992dd9896d5928559458f228b9a539 Patch
• https://github.com/open-webui/open-webui/pull/26722 PatchVendor Advisory
• https://github.com/open-webui/open-webui/releases/tag/v0.11.0 Release Notes
• https://github.com/open-webui/open-webui/security/advisories/GHSA-jxc9-xmc4-gr23 PatchVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories