Description
The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.
Affected products
apache: tomcat; debian: debian linux; netapp: oncommand system manager; opensuse: leap; canonical: ubuntu linux; mcafee: epolicy orchestrator; oracle: agile engineering data management; oracle: agile product lifecycle management; oracle: blockchain platform; oracle: commerce guided search; oracle: communications cloud native core policy; oracle: communications instant messaging server; oracle: fmw platform; oracle: instantis enterprisetrack; oracle: managed file transfer
References10
- lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c0… Mailing ListRelease NotesVendor Advisory
- lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c0… Mailing ListRelease NotesVendor Advisory
- www.oracle.com//security-alerts/cpujul2021.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2022.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpujan2021.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpujan2022.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2020.html PatchThird Party Advisory
- www.oracle.com//security-alerts/cpujul2021.html PatchThird Party Advisory
- www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 87% percentile: 100 · as of 11 November 2026
- CWE
- CWE-835
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