CVE-2021-34429 Affecting jetty9 package, versions <9.4.39-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
99.3% (100th percentile)

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  • Snyk IDSNYK-ECHOLATEST-JETTY9-18011522
  • published18 Jul 2026
  • disclosed15 Jul 2021

Introduced: 15 Jul 2021

CVE-2021-34429  (opens in a new tab)

How to fix?

Upgrade Echo:latest jetty9 to version 9.4.39-3 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.

For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.

References

CVSS Base Scores

version 3.1