Timing Attack Affecting org.apache.tomcat:tomcat package, versions [,9.0.118)[10.1.0-M1,10.1.55)[11.0.0-M1,11.0.22)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (27th percentile)

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  • Snyk IDSNYK-JAVA-ORGAPACHETOMCAT-16643278
  • published13 May 2026
  • disclosed12 May 2026
  • creditUnknown

Introduced: 12 May 2026

CVE-2026-43514  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

Upgrade org.apache.tomcat:tomcat to version 9.0.118, 10.1.55, 11.0.22 or higher.

Overview

org.apache.tomcat:tomcat is an implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies.

Affected versions of this package are vulnerable to Timing Attack via AJP secret comparison. An attacker can perform a timing side-channel attack to determine whether a guessed secret is correct by sending many authentication attempts directly to the connector and measuring the time taken to compare secrets.

CVSS Base Scores

version 4.0
version 3.1