CVE-2023-42795
Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 10, 2023
- Updated
- Oct 29, 2025
- Reserved
- Sep 14, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-459 Incomplete Cleanup
Affected Products
| Product | Versions |
|---|---|
Apache TomcatApache Software Foundation |
|
References
- https://lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lwvendor-advisory
- http://www.openwall.com/lists/oss-security/2023/10/10/9
- https://www.debian.org/security/2023/dsa-5522
- https://www.debian.org/security/2023/dsa-5521
- https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html
- https://security.netapp.com/advisory/ntap-20231103-0007/
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