CVE-2026-113703 SuggestArr before 3.0.0 Authentication Bypass via X-Forwarded-For Spoofing
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-113703?
CVE-2026-113703 is a critical vulnerability in giuseppe99barchetta SuggestArr, published on 20 Oct 2026.
Official description
SuggestArr before 3.0.0 contains an authentication bypass vulnerability in its local_bypass authentication mode where enforce_authentication() in api_service/auth/middleware.py trusts the client-controlled request.remote_addr value, which is derived from the spoofable X-Forwarded-For header due to ProxyFix(x_for=1) configuration in api_service/app.py. Attackers can send a request with X-Forwarded-For set to a trusted CIDR address such as 127.0.0.1 to be granted an unauthenticated admin session via _load_bypass_user_context(), gaining full administrative access to endpoints like /api/users and /api/jobs without providing any credentials.
Weakness: CWE-290
Which versions are affected by CVE-2026-113703?
How do I fix CVE-2026-113703?
No fix has been published for CVE-2026-113703 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-113703 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113703 exists.
Sources
Also known as GHSA-4pm7-2f9h-vxj4, GHSA-fcjm-xhw8-pmh5.