CVE-2021-28170
In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.
Date published : 2021-05-26
https://github.com/eclipse-ee4j/el-ri/issues/155
https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/