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Vulnerability · Published May 26, 2021 · Assigned by eclipse

CVE-2021-28170

Medium 5.3

In plain English

A medium-severity improper input validation in Jakarta Expression Language Implementation from The Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)2.1%top 17.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12jakarta-el-apino fix listedDEBIAN-CVE-2021-28170
Debian:13jakarta-el-apino fix listedDEBIAN-CVE-2021-28170
Debian:14jakarta-el-apino fix listedDEBIAN-CVE-2021-28170
Mavencom.sun.el:el-ri3.0.4GHSA-v6w3-2prq-h95f
Mavenorg.glassfish:jakarta.el3.0.4GHSA-v6w3-2prq-h95f
Mavenorg.glassfish:javax.elno fix listedGHSA-v6w3-2prq-h95f
Ubuntu:22.04:LTSjakarta-el-apino fix listedUBUNTU-CVE-2021-28170
Ubuntu:24.04:LTSjakarta-el-apino fix listedUBUNTU-CVE-2021-28170
Ubuntu:25.10jakarta-el-apino fix listedUBUNTU-CVE-2021-28170
Ubuntu:26.04:LTSjakarta-el-apino fix listedUBUNTU-CVE-2021-28170
Ubuntu:26.10jakarta-el-apino fix listedUBUNTU-CVE-2021-28170

Affected products (as reported)

VendorProductVersions
The Eclipse Foundation Jakarta Expression Language Implementation unspecified – through 3.0.3

Weakness: CWE-20

References