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CVE-2026-55955 Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in…
Description
Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.23, 10.1.56, 9.0.119, which fixes the issue.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Tomcat 11.0 | 11.0.0-M1 → 11.0.22 | No fix stated |
| Apache Tomcat 10.1 | 10.1.0-M1 → 10.1.55 | No fix stated |
| Apache Tomcat 9.0 | 9.0.13 → 9.0.118 | No fix stated |
| Apache Tomcat 8.5 | 8.5.38 → 8.5.100 | No fix stated |
| Apache Tomcat 7.0 | 7.0.100 → 7.0.109 | No fix stated |
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