DEBIAN-CVE-2020-11996

DEBIAN-CVE-2020-11996 PUBLISHED CVSS 7.5 HIGH

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

Risk Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
Debian:11	tomcat9	0, 0, 0
Debian:13	tomcat9	0, 0, 0
Debian:14	tomcat9	0, 0, 0
Debian:12	tomcat9	0, 0, 0

Timeline

Jun 26, 2020 CVE Published
Apr 28, 2026 CVE Updated

References

https://security-tracker.debian.org/tracker/CVE-2020-11996 advisory

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