VDE-2026-102

Vulnerability from csaf_wagogmbhcokg - Published: 2026-11-04 13:00 - Updated: 2026-11-04 13:00
Summary
WAGO: Unauthorized Account Access via Credential Recovery Process
Severity
Critical
Notes
Summary: A vulnerability in the authentication and credential recovery process may allow an unauthenticated attacker to bypass intended verification controls during password reset operations. By exploiting this weakness, an attacker could reset credentials for arbitrary user accounts and gain unauthorized access without possessing valid authentication credentials.
Impact: Successful exploitation could lead to unauthorized account takeover and access to application resources with the privileges of the compromised user. Depending on the affected account's permissions, this may result in unauthorized access to sensitive information, misuse of privileged functions, modification of system settings, or broader compromise of the affected environment.
Remediation: The vulnerability was remediated in the Building Cloud Service on August 26, and as the service is centrally managed and updated automatically, no customer action is required to apply the security fix. Customers are advised to review user account activity and verify that no passwords have been changed unexpectedly prior to remediation.
CVE-2026-18963

A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.

9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Affected products
Product Identifier Version Remediation
Wago Building Cloud Services 7.36.156
WAGO / Software / Building Cloud Services
 cpe:2.3:a:wago:building_cloud:7.36.156:*:*:*:*:*:*:* 7.36.156
Product Identifier Version Remediation
Wago Building Cloud Services 7.19<7.36.156
WAGO / Software / Building Cloud Services
 cpe:2.3:a:wago:building_cloud:*:*:*:*:*:*:*:* vers:semver/>=7.19|<7.36.156
Vendor Fix
References
Acknowledgments
CERTVDE certvde.com
To clipboard 

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  "document": {
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        "summary": "coordination",
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    "aggregate_severity": {
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        "text": "A vulnerability in the authentication and credential recovery process may allow an unauthenticated attacker to bypass intended verification controls during password reset operations. By exploiting this weakness, an attacker could reset credentials for arbitrary user accounts and gain unauthorized access without possessing valid authentication credentials.",
        "title": "Summary"
      },
      {
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        "text": "Successful exploitation could lead to unauthorized account takeover and access to application resources with the privileges of the compromised user. Depending on the affected account\u0027s permissions, this may result in unauthorized access to sensitive information, misuse of privileged functions, modification of system settings, or broader compromise of the affected environment.",
        "title": "Impact"
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      {
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      {
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        "summary": "CERT@VDE Security Advisories for WAGO",
        "url": "https://certvde.com/de/advisories/vendor/wago/"
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        "name": "Weak Password Recovery Mechanism for Forgotten Password"
      },
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.",
          "title": "CVE description"
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
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            "userInteraction": "NONE",
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        }
      ],
      "title": "Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentials flow bypass"
    }
  ]
}



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