Eclipse Jetty 9.4.37-9.4.42, 10.0.1-10.0.5 and 11.0.1-11.0.5 are susceptible to improper authorization. URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. An attacker can potentially obtain sensitive information, modify data, and/or execute unauthorized administrative operations. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.
View the template here CVE-2021-34429.yaml
References:
https://github.com/eclipse/jetty.project/security/advisories/GHSA-vjv5-gp2w-65vm