Bug 2476520 (CVE-2026-43513) - CVE-2026-43513 tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm
Summary: CVE-2026-43513 tomcat-catalina: Apache Tomcat: Improper Handling of Case Sens...
Keywords:
Status: NEW
Alias: CVE-2026-43513
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2514402
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-12 16:02 UTC by OSIDB Bzimport
Modified: 2026-09-18 09:04 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:39188 0 None None None 2026-07-14 16:11:50 UTC
Red Hat Product Errata RHSA-2026:39189 0 None None None 2026-07-14 16:08:55 UTC
Red Hat Product Errata RHSA-2026:43401 0 None None None 2026-07-22 12:23:52 UTC
Red Hat Product Errata RHSA-2026:43402 0 None None None 2026-07-22 12:22:41 UTC
Red Hat Product Errata RHSA-2026:67163 0 None None None 2026-09-14 13:35:23 UTC
Red Hat Product Errata RHSA-2026:67164 0 None None None 2026-09-14 13:35:05 UTC
Red Hat Product Errata RHSA-2026:68651 0 None None None 2026-09-18 09:04:58 UTC
Red Hat Product Errata RHSA-2026:68659 0 None None None 2026-09-17 14:21:25 UTC
Red Hat Product Errata RHSA-2026:68660 0 None None None 2026-09-17 14:40:22 UTC
Red Hat Product Errata RHSA-2026:68677 0 None None None 2026-09-17 15:03:16 UTC
Red Hat Product Errata RHSA-2026:68678 0 None None None 2026-09-17 14:33:06 UTC
Red Hat Product Errata RHSA-2026:68679 0 None None None 2026-09-17 14:36:22 UTC
Red Hat Product Errata RHSA-2026:68680 0 None None None 2026-09-17 14:39:11 UTC

Description OSIDB Bzimport 2026-05-12 16:02:11 UTC 
Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Older unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Comment 7 errata-xmlrpc 2026-07-14 16:08:53 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Web Server 7.0.0

Via RHSA-2026:39189 https://access.redhat.com/errata/RHSA-2026:39189
Comment 8 errata-xmlrpc 2026-07-14 16:11:49 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Web Server 7.0 on RHEL 10
  Red Hat JBoss Web Server 7.0 on RHEL 8
  Red Hat JBoss Web Server 7.0 on RHEL 9

Via RHSA-2026:39188 https://access.redhat.com/errata/RHSA-2026:39188
Comment 9 errata-xmlrpc 2026-07-22 12:22:39 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Web Server 6.2.4

Via RHSA-2026:43402 https://access.redhat.com/errata/RHSA-2026:43402
Comment 10 errata-xmlrpc 2026-07-22 12:23:51 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Web Server 6.2 on RHEL 10
  Red Hat JBoss Web Server 6.2 on RHEL 8
  Red Hat JBoss Web Server 6.2 on RHEL 9

Via RHSA-2026:43401 https://access.redhat.com/errata/RHSA-2026:43401
Comment 12 Jon Orris 2026-09-14 13:35:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:67164 https://access.redhat.com/errata/RHSA-2026:67164
Comment 13 Jon Orris 2026-09-14 13:35:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:67163 https://access.redhat.com/errata/RHSA-2026:67163
Comment 14 Jon Orris 2026-09-17 14:21:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:68659 https://access.redhat.com/errata/RHSA-2026:68659
Comment 15 Jon Orris 2026-09-17 14:33:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:68678 https://access.redhat.com/errata/RHSA-2026:68678
Comment 16 Jon Orris 2026-09-17 14:36:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:68679 https://access.redhat.com/errata/RHSA-2026:68679
Comment 17 Jon Orris 2026-09-17 14:39:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:68680 https://access.redhat.com/errata/RHSA-2026:68680
Comment 18 Jon Orris 2026-09-17 14:40:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:68660 https://access.redhat.com/errata/RHSA-2026:68660
Comment 19 Jon Orris 2026-09-17 15:03:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:68677 https://access.redhat.com/errata/RHSA-2026:68677
Comment 20 Jon Orris 2026-09-18 09:04:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:68651 https://access.redhat.com/errata/RHSA-2026:68651
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