CVE-2026-29145: Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabled

Published Apr 9, 2026
·
Updated

CLIENTCERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat, Apache Tomcat Native.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M7 through 10.1.52, from 9.0.83 through 9.0.115; Apache Tomcat Native: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39, from 1.3.0 through 1.3.6, from 2.0.0 through 2.0.13.

Users are recommended to upgrade to version Tomcat Native 1.3.7 or 2.0.14 and Tomcat 11.0.20, 10.1.53 and 9.0.116, which fix the issue.

Affected Software

23 affected components
Apache Tomcat>=11.0.0-M1<=11.0.18, >=10.1.0-M7<=10.1.52, >=9.0.83<=9.0.115
Apache Tomcat Native>=1.1.23<=1.1.34, >=1.2.0<=1.2.39, >=1.3.0<=1.3.6, >=2.0.0<=2.0.13
Apache Tomcat>=9.0.83<9.0.116
Apache Tomcat>=10.1.1<10.1.53
Apache Tomcat>=11.0.0<11.0.20
Apache Tomcat=10.1.0
Apache Tomcat=10.1.0-milestone10
Apache Tomcat=10.1.0-milestone11
Apache Tomcat=10.1.0-milestone12
Apache Tomcat=10.1.0-milestone13
Apache Tomcat=10.1.0-milestone14
Apache Tomcat=10.1.0-milestone15
Apache Tomcat=10.1.0-milestone16
Apache Tomcat=10.1.0-milestone17
Apache Tomcat=10.1.0-milestone18
Apache Tomcat=10.1.0-milestone19
Apache Tomcat=10.1.0-milestone20
Apache Tomcat=10.1.0-milestone7
Apache Tomcat=10.1.0-milestone8
Apache Tomcat=10.1.0-milestone9
Apache Tomcat Native>=1.1.23<1.3.7
Apache Tomcat Native>=2.0.0<2.0.14
IBM API Connect V12 OnPrem<=All

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apache Tomcat Native to a version that resolves this vulnerability.

    Fixed in 1.3.7
  2. Upgrade

    Upgrade Apache Tomcat Native to a version that resolves this vulnerability.

    Fixed in 2.0.14
  3. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.20
  4. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.53
  5. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.116
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch CVE-2026-29145

Event History

Apr 9, 2026
CVE Published
via MITRE·07:20 PM
Data Sourced
via MITRE·07:20 PM
DescriptionWeakness
Data Sourced
via Red Hat·08:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·08:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 9, 2026
News Published
via BleepingComputer·07:36 PM
News Published
via BleepingComputer·07:38 PM
Jul 7, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-29145?

CVE-2026-29145 is classified as a moderate severity vulnerability.

2

How do I fix CVE-2026-29145?

To fix CVE-2026-29145, update Apache Tomcat or Apache Tomcat Native to the latest version that has addressed this vulnerability.

3

What versions are affected by CVE-2026-29145?

CVE-2026-29145 affects Apache Tomcat versions 11.0.0-M1 to 11.0.18, 10.1.0-M7 to 10.1.52, and 9.0.83 to 9.0.115, along with specific Apache Tomcat Native versions.

4

What does CVE-2026-29145 impact?

CVE-2026-29145 impacts the OCSP checks in Apache Tomcat and Apache Tomcat Native, causing unexpected behavior in CLIENT_CERT authentication.

5

Is user data at risk due to CVE-2026-29145?

Yes, due to the potential authentication failure scenarios, user data could be at risk if this vulnerability is exploited.

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CVE-2026-29145 - Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabled - SecAlerts