CVE-2024-23656: Linuxfoundation Dex

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex 2.37.0 serves HTTPS with insecure TLS 1.0 and TLS 1.1. `cmd/dex/serve.go` line 425 seemingly sets TLS 1.2 as minimum version, but the whole `tlsConfig` is ignored after `TLS cert reloader` was introduced in v2.37.0. Configured cipher suites are not respected either. This issue is fixed in Dex 2.38.0.

Affected products

• Linuxfoundation Dex: version 2.37.0 only

Published 2024-01-25. Last modified 2026-06-17.