{"cve":"CVE-2021-28170","nvd":{"published":"2021-05-26T22:15:07.980","modified":"2026-06-17T03:45:56.970","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-917","CWE-20"],"references":["https://github.com/eclipse-ee4j/el-ri/issues/155","https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/","https://www.oracle.com/security-alerts/cpuapr2022.html","https://github.com/eclipse-ee4j/el-ri/issues/155","https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/"],"products":["eclipse:jakarta_expression_language","oracle:communications_cloud_native_core_policy","oracle:weblogic_server","quarkus:quarkus"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-28170","score":0.02132,"percentile":0.81978,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-v6w3-2prq-h95f","url":"https://osv.dev/vulnerability/GHSA-v6w3-2prq-h95f","summary":"Improper Input Validation in Jakarta Expression Language","modified":"2025-07-01T17:04:46.695265Z","packages":[{"ecosystem":"Maven","name":"com.sun.el:el-ri","purl":"pkg:maven/com.sun.el/el-ri","ranges":["<3.0.4"],"fixed":["3.0.4"]},{"ecosystem":"Maven","name":"org.glassfish:jakarta.el","purl":"pkg:maven/org.glassfish/jakarta.el","ranges":["<3.0.4"],"fixed":["3.0.4"]},{"ecosystem":"Maven","name":"org.glassfish:javax.el","purl":"pkg:maven/org.glassfish/javax.el","ranges":["<=3.0.1-b12"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}