{"id":"DEBIAN-CVE-2021-28169","details":"For Eclipse Jetty versions \u003c= 9.4.40, \u003c= 10.0.2, \u003c= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.","modified":"2026-09-15T09:01:23.459402750Z","published":"2021-06-09T02:15:06.853Z","upstream":["CVE-2021-28169"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-28169"}],"affected":[{"package":{"name":"jetty9","ecosystem":"Debian:12","purl":"pkg:deb/debian/jetty9?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.4.39-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-28169.json"}},{"package":{"name":"jetty9","ecosystem":"Debian:13","purl":"pkg:deb/debian/jetty9?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.4.39-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-28169.json"}},{"package":{"name":"jetty9","ecosystem":"Debian:14","purl":"pkg:deb/debian/jetty9?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.4.39-2"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-28169.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}