---
id: CVE-2026-113703
title: SuggestArr before 3.0.0 Authentication Bypass via X-Forwarded-For Spoofing
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, whic…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-290
vendor: giuseppe99barchetta
product: SuggestArr
affected:
  - SuggestArr >= 1.0.4 < 3.0.0
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-20T16:18:19.240308Z'
exploitAvailable: true
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T16:18:36.636Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113703'
references:
  - url: 'https://github.com/giuseppe99barchetta/SuggestArr/releases/tag/v3.0.0'
    label: Vendor Patch
  - url: >-
      https://github.com/giuseppe99barchetta/SuggestArr/security/advisories/GHSA-fcjm-xhw8-pmh5
    label: Vendor Advisory
  - url: >-
      https://www.vulncheck.com/advisories/suggestarr-before-authentication-bypass-via-x-forwarded-for-spoofing
    label: >-
      VulnCheck Advisory: SuggestArr before 3.0.0 Authentication Bypass via
      X-Forwarded-For Spoofing
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-10-20T16:10:53.291Z'
---

## Overview

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.

## Affected

- `SuggestArr >= 1.0.4 < 3.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.