Improper Check for Certificate Revocation Affecting org.apache.tomcat.embed:tomcat-embed-core package, versions [8.5.0,9.0.122)[10.1.0-M1,10.1.59)[11.0.0-M1,11.0.26)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-JAVA-ORGAPACHETOMCATEMBED-21715432
  • published26 Oct 2026
  • disclosed23 Sept 2026
  • creditarpitjain099

Introduced: 23 Sep 2026

CVE-2026-73581  (opens in a new tab)
CWE-299  (opens in a new tab)

How to fix?

Upgrade org.apache.tomcat.embed:tomcat-embed-core to version 9.0.122, 10.1.59, 11.0.26 or higher.

Overview

org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation.

Affected versions of this package are vulnerable to Improper Check for Certificate Revocation via the OpenSSLContext implementations in its OpenSSL and OpenSSL-FFM TLS components. When OpenSSL trust is used and the server key is held in a Java keystore, these implementations ignore configured CRLs; an attacker can present a revoked client certificate during TLS authentication and be treated as a valid user, gaining access to resources protected by client-certificate authentication.

CVSS Base Scores

version 4.0
version 3.1