Improper Validation of Syntactic Correctness of Input Affecting org.apache.tomcat:tomcat-coyote package, versions [,9.0.118)[10.0.0-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
1.56% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-JAVA-ORGAPACHETOMCAT-16691217
  • published14 May 2026
  • disclosed12 May 2026
  • creditDawit Jeong

Introduced: 12 May 2026

CVE-2026-41293  (opens in a new tab)
CWE-1286  (opens in a new tab)

How to fix?

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

Overview

org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser.

Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially compromise the application by sending specially crafted HTTP/2 request headers.

CVSS Base Scores

version 4.0
version 3.1