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.
Does this matter?
Lower severity and a low EPSS score (2.13%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 2.13% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-917
- Affected
- eclipse/jakarta expression language · quarkus/quarkus · oracle/communications cloud native core policy · oracle/weblogic server
- Source
- emo@eclipse.org
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/eclipse-ee4j/el-ri/issues/155Exploit, Issue Tracking, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/Exploit, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://github.com/eclipse-ee4j/el-ri/issues/155Exploit, Issue Tracking, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/Exploit, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.