Moole Vulnerability Database

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High

CVE-2026-34483

Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , which fix the issue.

VectorNETWORK

PublishedApr 09, 2026, 20:16

Published Bysecurity@apache.org

Base Score

Score7.5

Affected Versions

Package (Ecosystem)IntroducedFixedLimit

org.apache.tomcat:tomcat-catalina(Maven)9.0.409.0.116N/A

org.apache.tomcat:tomcat-catalina(Maven)10.1.0-M110.1.54N/A

org.apache.tomcat:tomcat-catalina(Maven)11.0.0-M111.0.21N/A

org.apache.tomcat:tomcat(Maven)9.0.409.0.116N/A

org.apache.tomcat:tomcat(Maven)10.1.0-M110.1.54N/A

org.apache.tomcat:tomcat(Maven)11.0.0-M111.0.21N/A

org.apache.tomcat.embed:tomcat-embed-core(Maven)9.0.409.0.116N/A

org.apache.tomcat.embed:tomcat-embed-core(Maven)10.1.0-M110.1.54N/A

org.apache.tomcat.embed:tomcat-embed-core(Maven)11.0.0-M111.0.21N/A

References

Weakness Type

CWE-116

CVSS Metrics

Base Score

7.5

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Base SeverityHigh

Version

3.1

Attack Vector (AV)

NETWORK