{"cve":"CVE-2026-87013","nvd":{"published":"2026-09-09T21:17:06.173","modified":"2026-09-15T16:09:34.607","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":4.3},"cwes":["CWE-835"],"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"],"products":["openwebui:open_webui"],"source":"nvd","synced_at":"2026-10-19T22:52:53.108888569+00:00"},"epss":{"cve":"CVE-2026-87013","score":0.00484,"percentile":0.41749,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8r35-5x5r-hv74","url":"https://osv.dev/vulnerability/GHSA-8r35-5x5r-hv74","summary":"Open WebUI: Any authenticated user can start a non-terminating request via a folder parent cycle","modified":"2026-10-01T17:55:52.758140231Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":[">=0.10.0 <0.11.1"],"fixed":["0.11.1"]}]},{"id":"PYSEC-2026-4121","url":"https://osv.dev/vulnerability/PYSEC-2026-4121","summary":"Open WebUI: Any authenticated user can start a non-terminating request via a folder parent cycle","modified":"2026-10-01T17:45:06.266177573Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":[">=0.10.0 <0.11.1"],"fixed":["0.11.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}