CVE-2021-28164
jetty: Ambiguous paths can access WEB-INF
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 1, 2021
Updated · October 12, 2026
Description
In Jetty the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. An attacker can use this vulnerability to reveal sensitive information regarding the implementation of a web application.
Statement
Red Hat OpenStack Platform's OpenDaylight will not be updated for this flaw because it was deprecated as of OpenStack Platform 14 and is only receiving security fixes for Important and Critical flaws.
Red Hat CodeReady Studio 12 is not affected by this vulnerability because it does not ship a vulnerable version of jetty.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor