What is CVE-2026-59218?

CVE-2026-59218 is a medium-severity vulnerability in Open-webui, classified under CWE-208. CVSS score: 5.3/10. Published 2026-07-09.

How severe is CVE-2026-59218?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Open-webui

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 r…

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Open-webui — versions < 0.10.0

Weakness classification (CWE)

CWE-208

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-59218?: CVE-2026-59218 is a medium-severity vulnerability in Open-webui, classified under CWE-208. CVSS score: 5.3/10. Published 2026-07-09.
How severe is CVE-2026-59218?: Medium severity. CVSS v3 base score is 5.3 out of 10.