CVE-2026-113703

LOWCVSS 9.1 · CRITICAL

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-290

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Deep dive

Full discourse1 post
  • Atlas Threat Monitoring@ThreatAtlas

    Unpatched vulnerabilities don't stay hidden on our atlas. #CVE CRITICAL VULNERABILITY DETECTED CVE ID: CVE-2026-113703 Vendor: Unknown Severity: Critical — CVSS 9.1 Product: Unknown Date: 2026-10-20 A critical vulnerability (Authentication Bypass by Spoofing) has been disclosed affecting Unknown. Patch immediately. Powered by @Brandefense #ThreatIntel #CyberSecurity #CVE #Unknown

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