{"cve":"CVE-2026-45345","nvd":{"published":"2026-05-15T22:16:54.923","modified":"2026-06-17T10:51:56.547","status":"Analyzed","description":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.5.7, a user can modify another user's model even if its visibility is set to Private. By changing the access permissions during editing, unauthorized access can be gained. This vulnerability is fixed in 0.5.7.","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:H/A:N","score":6.5},"cwes":["CWE-285"],"references":["https://github.com/open-webui/open-webui/security/advisories/GHSA-gm54-m39w-grjp","https://github.com/open-webui/open-webui/security/advisories/GHSA-gm54-m39w-grjp"],"products":["openwebui:open_webui"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-45345","score":0.00226,"percentile":0.13383,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gm54-m39w-grjp","url":"https://osv.dev/vulnerability/GHSA-gm54-m39w-grjp","summary":"Open WebUI missing authorization check at the model update function - models from other users can be updated","modified":"2026-07-13T16:43:10.304774956Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.5.7"],"fixed":["0.5.7"]}]},{"id":"PYSEC-2026-2727","url":"https://osv.dev/vulnerability/PYSEC-2026-2727","summary":"Open WebUI missing authorization check at the model update function - models from other users can be updated","modified":"2026-07-13T16:32:19.851813751Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.5.7"],"fixed":["0.5.7"]}]}],"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."]}