CVE-2026-82263: Logto-Io Logto

Medium severity, CVSS 6.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbitrary internal URLs to trigger HTTP GET requests to private network services, with response content returned in API responses.

Affected products

• Logto-Io Logto: up to and including 1.42.0

Published 2026-08-28. Last modified 2026-09-08.