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CVE-2021-28170

nvd nist
Published: May 26, 2021Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

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 (4)

Eclipse
1 product
Jakarta Expression Language
Quarkus
1 product
Quarkus
Oracle
2 products
Communications Cloud Native Core Policy
Weblogic Server
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Jakarta Expression Language
Up to 3.0.3
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Quarkus
Before 2.3.0
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Communications Cloud Native Core Policy
Version 1.14.0
Weblogic Server
Version 14.1.1.0.0

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-917
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

References (6)

Source: emo@eclipse.org
ExploitIssue TrackingThird Party Advisory
Source: emo@eclipse.org
ExploitThird Party Advisory
Source: emo@eclipse.org
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory

Timeline

No history available yet.