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CVE-2026-113703: SuggestArr

Severity

9.1 (CRITICAL)

Vendor

SUGGESTARR BEFORE

Affected versions

Before 3.0.0

Fixed version

3.0.0

Patch status

Patched

Published

2026-10-20T16:17:13.507

Why it matters

This matters because the affected product may allow code execution. Prioritize systems that are internet-facing or have privileged access to other infrastructure.

Recommended admin actions

• Prioritize validation immediately due to critical CVSS severity.
• Compare installed versions against the affected version range in the advisory.
• Treat internet-facing systems as higher priority.
• Review logs for suspicious activity related to the affected application or component.

Technical summary

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.

View the official NVD record for CVE-2026-113703

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.