SARA / Free Tools / CVE / CVE-2023-42794

CVE-2023-42794 — Incomplete Cleanup vulnerability in Apache Tomcat

Incomplete Cleanup vulnerability in Apache Tomcat.

CVSS

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EPSS

32.00% (top 45.60%)

CWE

CWE-459

Published

2023-10-10T17:17:01.378Z

Last modified

2025-10-29T12:04:10.367Z

CVSS vector

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01What is this vulnerability?

Incomplete Cleanup vulnerability in Apache Tomcat.

Vendor	Product	Versions
Apache Software Foundation	Apache Tomcat	9.0.70, 8.5.85, 10.0.0-M1

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

lists.apache.org — https://lists.apache.org/thread/vvbr2ms7lockj1hlhz5q3wmxb2mwcw82

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