Denial of Service via incomplete cleanup vulnerability in Apache Tomcat
Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.tomcat.embed:tomcat-embed-websocket | >= 11.0.0-M1, < 11.0.0-M17, >= 10.1.0-M1, < 10.1.19, >= 9.0.0-M1, < 9.0.86, >= 8.5.0, < 8.5.99 | 11.0.0-M17, 10.1.19, 9.0.86, 8.5.99 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat-websocket | >= 11.0.0-M1, < 11.0.0-M17, >= 10.1.0-M1, < 10.1.19, >= 9.0.0-M1, < 9.0.86, >= 8.5.0, < 8.5.99 | 11.0.0-M17, 10.1.19, 9.0.86, 8.5.99 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-23672
- https://github.com/apache/tomcat/commit/0052b374684b613b0c849899b325ebe334ac6501
- https://github.com/apache/tomcat/commit/3631adb1342d8bbd8598802a12b63ad02c37d591
- https://github.com/apache/tomcat/commit/52d6650e062d880704898d7d8c1b2b7a3efe8068
- https://github.com/apache/tomcat/commit/b0e3b1bd78de270d53e319d7cb79eb282aa53cb9
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/cmpswfx6tj4s7x0nxxosvfqs11lvdx2f
- https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UWIS5MMGYDZBLJYT674ZI5AWFHDZ46B
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/736G4GPZWS2DSQO5WKXO3G6OMZKFEK55
- https://security.netapp.com/advisory/ntap-20240402-0002
- http://www.openwall.com/lists/oss-security/2024/03/13/4
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-459- Platform
- Java / Kotlin (Maven)
- Package
org.apache.tomcat.embed:tomcat-embed-websocket, org.apache.tomcat:tomcat-websocket- Disclosed
- 13.03.2024
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-v682-8vv8-vpwr - CC BY 4.0
Vulnerability history: org.apache.tomcat:tomcat-websocket
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 02.2022 03.2024
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 0
- 2026: 0
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