CVE-2023-42795 - CVE House
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Status published Unknown CVE-2023-42795

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

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Apache Software Foundation

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Affected Software

Apache Tomcat
Vulnerable Versions:
11.0.0-M1, 10.1.0-M1, 9.0.0-M1, 8.5.0, 3, 10.0.0-M1

Timeline

Official Publish: October 10th, 2023
Last Modified: October 29th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-459

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.