CVE-2026-59218

MediumCVSS 5.3/10Last modified Jul 10, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-208

Affected software

VendorProductVersions
open-webuiopen-webui< 0.10.0

References

Timeline

Published
Jul 9, 2026
Last modified
Jul 10, 2026
NVD status
Analyzed

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CVE-2026-59218: Medium severity, CVSS 5.3 | Vulnix