CVE-2021-28170
MEDIUM
5.3
CVSS Score
Published: May 26, 2021 at 09:55 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
4 products affected across 3 vendorsWebLogic ServerCommunications Cloud Native Core PolicyQuarkus
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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 3.0.3
Vendor states this is fixed in next of 3.0.3 (unknown)
WebLogic Server· Oracledrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/eclipse-ee4j/el-ri/issues/155x_refsource_CONFIRMExploitThird Party Advisory
Source: [email protected]
https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20CWE-917
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