CVE-2026-59218

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/open-webui/open-webui/commit/993e74912199c66c522f08ec81abe31d76985e39	Patch
https://github.com/open-webui/open-webui/pull/26385	Issue Tracking Patch
https://github.com/open-webui/open-webui/releases/tag/v0.10.0	Product Release Notes
https://github.com/open-webui/open-webui/security/advisories/GHSA-7rw5-9f7q-xj36	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-09 17:17

Updated : 2026-07-10 18:30

NVD link : CVE-2026-59218

Mitre link : CVE-2026-59218

CVE.ORG link : CVE-2026-59218

JSON object : View

Products Affected

openwebui

open_webui

CWE

CWE-208

Observable Timing Discrepancy

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