Improper Authentication Affecting org.apache.tomcat.embed:tomcat-embed-core package, versions [,9.0.117)[10.1.0-M7,10.1.54)[11.0.0-M1,11.0.21)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHETOMCATEMBED-15989820
- published12 Apr 2026
- disclosed8 Apr 2026
- creditHaruki Oyama
Introduced: 8 Apr 2026
CVE-2026-34500 (opens in a new tab)How to fix?
Upgrade org.apache.tomcat.embed:tomcat-embed-core to version 9.0.117, 10.1.54, 11.0.21 or higher.
Overview
org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation.
Affected versions of this package are vulnerable to Improper Authentication in processOCSPRequest(), which is part of the the CLIENT_CERT authentication process. In some "edge cases", an attacker can trigger a soft-fail of OCSP checks when soft-fail is disabled.