CVE-2026-59218
Open WebUI: Account enumeration via observable login timing discrepancy
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-208 |
| Vendor | open-webui |
| Product | open-webui |
| Published | Jul 9, 2026 |
| Last Updated | Jul 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
open-webui / open-webui
< 0.10.0
References
github.com: https://github.com/open-webui/open-webui/security/advisories/GHSA-7rw5-9f7q-xj36 github.com: https://github.com/open-webui/open-webui/pull/26385 github.com: https://github.com/open-webui/open-webui/commit/993e74912199c66c522f08ec81abe31d76985e39 github.com: https://github.com/open-webui/open-webui/releases/tag/v0.10.0