CVE-2026-41281 — Information Disclosure

CVE-2026-41281 — Information Disclosure

CVE-2026-41281 — Android App "あんしんフィルター for au" provided by KDDI CORPORATION contains Cleartext Transmission of Sensitive Information (CWE-319) vulnerability. A man-in-the-middle attacker may access and modify communications transmitted in plaintext, potentially resulting in information disclosure o

What This Means For You

  • If your environment is affected by CWE-319, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-41281 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 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 T1041 Exfiltration

Cleartext Transmission of Sensitive Information in 'あんしんフィルター for au' - CVE-2026-41281

Sigma YAML — free preview
title: Cleartext Transmission of Sensitive Information in 'あんしんフィルター for au' - CVE-2026-41281
id: scw-2026-05-14-ai-1
status: experimental
level: medium
description: |
  This rule detects potential cleartext transmission of sensitive information by the Android app 'あんしんフィルター for au' (CVE-2026-41281). It specifically looks for requests to a known endpoint within the app that contain sensitive parameters like 'password' or 'token' in the query string, indicating a CWE-319 vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-05-14
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-41281/
tags:
  - attack.exfiltration
  - attack.t1041
logsource:
    category: proxy
detection:
  selection:
      cs-uri|contains:
          - '/anshin-filter/user/data'
      cs-uri-query|contains:
          - 'password='
          - 'token='
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-41281 vulnerability CVE-2026-41281
CWE-319 weakness CWE-319
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 14, 2026 at 03:16 UTC

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