Widely deployed Tomcat/web server; auth bypass could enable unauthorized access across apps.
CVE-2026-29145
Authentication bypass in Tomcat client_cert when soft fail is disabled.
Is CVE-2026-29145 being exploited?
Not confirmed. CVE-2026-29145 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.71% probability of exploitation in the next 30 days.
How severe is CVE-2026-29145?
CVE-2026-29145 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-29145?
Yes. A fix has been recorded for CVE-2026-29145. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-29145 affect?
CVE-2026-29145 affects Apache Tomcat 9.0.83–9.0.115, Apache Tomcat 10.1.0-M7–10.1.52, Apache Tomcat 11.0.0-M1–11.0.18, Tomcat Native 1.1.23–1.1.34, and 3 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-29145?
Upgrade Tomcat to 11.0.20+/10.1.53+/9.0.116 and Native to 1.3.7+/2.0.14
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypasses client-cert authentication, enabling unauthorized access to protected web apps.
Immediate action required
- affected>= 11.0.0-M1 and <= 11.0.18
- affected>= 10.1.0-M7 and <= 10.1.52
- affected>= 9.0.83 and <= 9.0.115
- affected>= 1.1.23 and <= 1.1.34
- affected>= 1.2.0 and <= 1.2.39
- affected>= 1.3.0 and <= 1.3.6
- affected>= 2.0.0 and <= 2.0.13
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.