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Servers and applications

CVE-2021-28164

In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.

Severity
Medium 5.3
Published
1 Apr 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Eclipse JettyServers and applications · cpe:a:eclipse:jetty
  • Version 9.4.37-20210219
  • Version 9.4.38-20210224

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-28164
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-28164