| Component | Open WebUI |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Published (NVD) | 2026-07-09 |
| Last modified | 2026-07-10 |
| Affected versions | open_webui < 0.10.0 |
| Fixed in | 0.10.0 |
| Weakness | CWE-208 |
| CISA KEV | not listed |
NVD description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the /api/v1/auths/signin endpoint looked users up by email and only ran bcrypt password verification when a credential existed, making registered-account attempts measurably slower than missing-email attempts and allowing unauthenticated account enumeration. This issue is fixed in version 0.10.0.
What to do
- Upgrade Open WebUI to
0.10.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-59218
- https://github.com/open-webui/open-webui/security/advisories/GHSA-7rw5-9f7q-xj36
- https://github.com/open-webui/open-webui/commit/993e74912199c66c522f08ec81abe31d76985e39
- https://github.com/open-webui/open-webui/pull/26385
- https://github.com/open-webui/open-webui/releases/tag/v0.10.0
Read more
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