CVE-2026-29146 PUBLISHED

Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

Assigner: apache
Reserved: 04.03.2026 Published: 09.04.2026 Updated: 09.04.2026

Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.

Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

Product Status

Vendor Apache Software Foundation
Product Apache Tomcat
Versions Default: unaffected
  • affected from 11.0.0-M1 to 11.0.18 (incl.)
  • affected from 10.0.0-M1 to 10.1.52 (incl.)
  • affected from 9.0.13 to 9.0.115 (incl.)
  • affected from 8.5.38 to 8.5.100 (incl.)
  • affected from 7.0.100 to 7.0.109 (incl.)

Credits

  • Uri Katz and Avi Lumelsky (Oligo Security) finder

References

Problem Types

  • Padding Oracle