CVE-2023-42795

CVE-2023-42795: Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests

Vendor Apache Software Foundation
Product Apache Tomcat
Weakness CWE-459
Published October 10, 2023
Last update October 29, 2025

CVSS base score

What the vulnerability does

Description

Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.

Key dates

Disclosure timeline

October 10, 2023 CVE published
October 29, 2025 Record updated