CVE-2026-66422
Severity CVSS v4.0:
Pending analysis
Type:
CWE-285
Improper Authorization
Publication date:
25/08/2026
Last modified:
27/08/2026
Description
Improper Authorization vulnerability in Apache Tomcat cause by security-role-ref definitions being incorrectly used as role aliases within the Realm in additional to the correct usage with Request.isUserInRole().<br />
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This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.25 through 9.0.120.<br />
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The following versions were EOL at the time the CVE was created but are <br />
known to be affected: from 8.5.46 through 8.5.100, from 7.0.97 through 7.0.109. Other unsupported versions may also be affected.<br />
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Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
Impact
Base Score 3.x
8.10
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 7.0.97 (including) | 7.0.109 (including) |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 8.5.46 (including) | 9.0.121 (excluding) |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 10.1.0 (including) | 10.1.58 (excluding) |
| cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* | 11.0.0 (including) | 11.0.25 (excluding) |
To consult the complete list of CPE names with products and versions, see this page