SARA / Free Tools / CVE / CVE-2023-42795

CVE-2023-42795 — Incomplete Cleanup vulnerability in Apache Tomcat

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

CVSS
EPSS
69.00% (top 28.40%)
CWE
CWE-459
Published
2023-10-10T17:42:16.705Z
Last modified
2025-10-29T12:02:59.708Z
CVSS vector

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Apache Software FoundationApache Tomcat11.0.0-M1, 10.1.0-M1, 9.0.0-M1, 8.5.0, 3, 10.0.0-M1

03Active exploitation status

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

04Recommended remediation

05Technical details

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

06Detection signatures

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

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07Related CVEs

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

08Timeline

09References

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