Vulnerability Details CVE-2026-87013
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/v1/folders/{id}/update/parent allowed a user to place a folder under itself or one of its descendants, while the folder tree walks used by DELETE /api/v1/folders/{id} and POST /api/v1/folders/{id}/read did not track visited folder identifiers. An authenticated user could persist a parent cycle and start a request that consumed CPU and memory indefinitely, with the condition remaining stored until repaired. This issue is fixed in version 0.11.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.0%
CVSS Severity
CVSS v3 Score 4.3
References
- https://github.com/open-webui/open-webui/commit/23b3a69bc26839bfa74edd1be6bfa2568ae902f4
- https://github.com/open-webui/open-webui/pull/28748
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1
- https://github.com/open-webui/open-webui/security/advisories/GHSA-8r35-5x5r-hv74
- https://github.com/open-webui/open-webui/security/advisories/GHSA-8r35-5x5r-hv74