Description
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 packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/shift72/caddy-geo-ip | <= 0.6.0 | — | GHSA-rxg9-hgq7-8pwx |
| Go | github.com/shift72/caddy-geo-ip | all versions | — | GO-2023-2394 |