CVE-2021-28170: Improper Input Validation

May 26, 2021 (updated April 25, 2022)

In the Jakarta Expression Language implementation, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.

References

github.com/eclipse-ee4j/el-ri/issues/155
nvd.nist.gov/vuln/detail/CVE-2021-28170

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