Resource Exhaustion Affecting jetty9 package, versions <9.4.38-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
77.95% (100th percentile)

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  • Snyk IDSNYK-ECHOLATEST-JETTY9-18011516
  • published18 Jul 2026
  • disclosed26 Feb 2021

Introduced: 26 Feb 2021

CVE-2020-27223  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Echo:latest jetty9 to version 9.4.38-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jetty9 package and not the jetty9 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.

References

CVSS Base Scores

version 3.1