Skip to content
OpenAdvisories
Medium · 5.3 CVE-2026-59218 EUVD-2026-42617GHSA-7rw5-9f7q-xj36PYSEC-2026-3594

Open WebUI: Account enumeration via observable login timing discrepancy

Published Jul 9, 2026 · Updated Jul 9, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
open-webui open-webui < 0.10.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI open-webui < 0.10.0 0.10.0 GHSA-7rw5-9f7q-xj36

References