{"cve":"CVE-2026-45387","nvd":{"published":"2026-05-15T21:16:37.177","modified":"2026-06-17T10:51:59.617","status":"Analyzed","description":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, when setting model permissions so that a group has read access to it, intending for other users to use it, those users also can read the model's system prompt. However users may consider their system prompt confidential, so this is considered a security issue. This vulnerability is fixed in 0.9.5.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-200"],"references":["https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr","https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr"],"products":["openwebui:open_webui"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-45387","score":0.0022,"percentile":0.12551,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-h2cw-7qw9-56xr","url":"https://osv.dev/vulnerability/GHSA-h2cw-7qw9-56xr","summary":"Open WebUI: Sharing models for others to use (read permission) also exposes model details (system prompt leakage)","modified":"2026-07-13T16:42:50.891383153Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.9.5"],"fixed":["0.9.5"]}]},{"id":"PYSEC-2026-2728","url":"https://osv.dev/vulnerability/PYSEC-2026-2728","summary":"Open WebUI: Sharing models for others to use (read permission) also exposes model details (system prompt leakage)","modified":"2026-07-13T16:32:19.893778547Z","packages":[{"ecosystem":"PyPI","name":"open-webui","purl":"pkg:pypi/open-webui","ranges":["<0.9.5"],"fixed":["0.9.5"]}]}],"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."]}