Open-Source Security Intelligence

Know every vulnerability
before it knows you.

DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.

Checkout DevGuardView on GitHub
Search

GHSA-7cqv-qcq2-r765

MediumCVSS 6.5 / 10
Published Dec 8, 2025·Last modified Dec 17, 2025
Affected Components(0)

No affected components available

Description

Summary

The server trusts all reverse-proxy headers by default, so any remote client can spoof X-Forwarded-For to bypass IP-based protections (AllowIPs, API IP whitelist, “localhost-only” checks). All IP-based access control becomes ineffective.

Details

  • Gin is created with defaults (gin.Default()), which sets TrustedProxies = 0.0.0.0/0 and uses X-Forwarded-For/X-Real-IP to compute ClientIP().

  • IP-based controls rely on ClientIP():

    • AllowIPs / BindDomain (core/middleware/ip_limit.go, core/utils/security/security.go).
    • API IP whitelist (core/middleware/api_auth.go).
    • "localhost-only" checks that depend on ClientIP().

  • Because no trusted-proxy range is enforced, any client can send X-Forwarded-For: 127.0.0.1 (or a whitelisted IP) and be treated as coming from that address.

Impact

All IP-based access control is rendered ineffective: remote clients can masquerade as localhost or any whitelisted IP, defeating AllowIPs, API IP whitelists, and “localhost-only” protections.

Risk Scores
Base Score
6.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
6.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.21%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities

Browse More

Medium severity
Scan your project

Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.

Checkout DevGuard