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CVE-2026-29145

Apache Tomcat authentication bypass

9.1 CRITICALEPSS 0.71%
  1. Published9 Apr 2026

Description

CLIENT_CERT 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Apache Tomcat≥ 10.1.1 < 10.1.53 · ≥ 11.0.0 < 11.0.20 · ≥ 9.0.83 < 9.0.116 · 10.1.0
Apache Tomcat Native≥ 1.1.23 < 1.3.7 · ≥ 2.0.0 < 2.0.14

Remediation

Fixed in
Apache Tomcat≥ 10.1.53
Apache Tomcat Native≥ 1.3.7

References

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Frequently asked

Is CVE-2026-29145 being actively exploited?

CVE-2026-29145 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.71%.

How severe is CVE-2026-29145?

CVE-2026-29145 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.71% probability of exploitation.

Which products are affected by CVE-2026-29145?

Affected products include Apache Tomcat, Apache Tomcat Native.

How do I fix CVE-2026-29145?

Upgrade affected software to a fixed version, for example Apache Tomcat 10.1.53, Apache Tomcat Native 1.3.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-29145 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.