CVE-2026-59218

mediumCVSS 5.3covered by 1 sourcefirst seen 2026-07-09

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.

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Exploitation outlook

Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-59218: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to…nvd · 2026-07-09

External references

NVD record for CVE-2026-59218

CVE.org record

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