CVE-2026-41226 — Open Redirect

CVE-2026-41226 — Open Redirect

CVE-2026-41226 — Open redirect vulnerability exists in Multiple laser printers and MFPs which implement Ricoh Web Image Monitor. When accessing a specially crafted URL, the user may be redirected to an arbitrary website. As a result, the user may become a victim of a phishing attack.

What This Means For You

  • If your environment is affected by CWE-601, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-41226 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 6 SIEM formats

2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

medium T1190 Initial Access

CVE-2026-41226 - Ricoh Web Image Monitor Open Redirect

Sigma YAML — free preview
title: CVE-2026-41226 - Ricoh Web Image Monitor Open Redirect
id: scw-2026-04-30-ai-1
status: experimental
level: medium
description: |
  Detects attempts to exploit CVE-2026-41226 by looking for specific URI paths used in the Ricoh Web Image Monitor that are indicative of an open redirect vulnerability. Attackers can use this to redirect users to malicious phishing sites.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-41226/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/cgi-bin/admin/admin.cgi?next_url='
          - '/cgi-bin/admin/admin.cgi?redirect_url='
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-41226 vulnerability CVE-2026-41226
CWE-601 weakness CWE-601
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedApril 30, 2026 at 10:16 UTC

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