Vulnerability in Giuseppe99barchetta Suggestarr
CVE-2026-113703
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.
Published .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/giuseppe99barchetta/SuggestArr/releases/tag/v3.0.0 (release-notes, patch)
- github.com/giuseppe99barchetta/SuggestArr/security/advisories/GHSA-fcjm-xhw8-pm… (vendor-advisory)
- www.vulncheck.com/advisories/suggestarr-before-authentication-bypass-via-x-forw… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-113703?
- CVE-2026-113703 is a critical-severity vulnerability in Giuseppe99barchetta Suggestarr, classified under Authentication Bypass by Spoofing. CVSS score: 9.3/10. Published 2026-10-20.
- How severe is CVE-2026-113703?
- Critical severity. CVSS v3 base score is 9.3 out of 10.