CVE-2023-50463: Caddyserver Caddy

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

The caddy-geo-ip (aka GeoIP) middleware through 0.6.0 for Caddy 2, when trust_header X-Forwarded-For is used, allows attackers to spoof their source IP address via an X-Forwarded-For header, which may bypass a protection mechanism (trusted_proxy directive in reverse_proxy or IP address range restrictions).

Affected products

• Caddyserver Caddy: up to and including 0.6.0

Published 2023-12-10. Last modified 2026-06-17.