CVE-2018-18893: Jinjava Jinjava Calls GetClass Vulnerability
MODERATECVE-2018-18893 is a MODERATE (CVSS 5.3) jinjava calls getclass vulnerability (General Security Weakness) affecting Jinjava libraries in the Maven ecosystem. The issue involves jinjava calls getclass. Remediation is available by upgrading affected packages to version 2.4.6.
CVE-2018-18893 at a Glance
Security Impact
CVSS: 5.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
How to Fix CVE-2018-18893
To remediate this vulnerability, upgrade all affected Jinjava dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>com.hubspot.jinjava</groupId>
<artifactId>jinjava</artifactId>
<version>2.4.6</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=com.hubspot.jinjavaHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2018-18893, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=com.hubspot.jinjavaAnalyze the terminal output to locate any version of Jinjava in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.4.6), your application is affected.
Note: The mvn dependency:tree -Dincludes=com.hubspot.jinjava command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under General Security Weakness. In Jinjava, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2018-18893 Affected Jinjava Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
com.hubspot.jinjava:jinjava
|
Maven |
< 2.4.6
|
2.4.6
|
References
Frequently Asked Questions
What is CVE-2018-18893?
Which Jinjava versions are affected?
What version fixes CVE-2018-18893?
Is jinjava affected?
What is the CVSS score of CVE-2018-18893?
What CWE is associated with CVE-2018-18893?
How can I check Maven dependencies for CVE-2018-18893?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-45r8-3495-x6rm",
"modified" : "2022-09-17T00:06:13Z",
"published" : "2019-01-04T17:43:36Z",
"aliases" : [ "CVE-2018-18893" ],
"summary" : "Jinjava calls getClass",
"details" : "Jinjava before 2.4.6 does not block the getClass method, related to com/hubspot/jinjava/el/ext/JinjavaBeanELResolver.java.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "com.hubspot.jinjava:jinjava"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.4.6"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-18893"
}, {
"type" : "WEB",
"url" : "https://github.com/HubSpot/jinjava/pull/230"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/HubSpot/jinjava"
}, {
"type" : "WEB",
"url" : "https://github.com/HubSpot/jinjava/blob/master/CHANGES.md"
}, {
"type" : "ADVISORY",
"url" : "https://github.com/advisories/GHSA-45r8-3495-x6rm"
} ],
"database_specific" : {
"cwe_ids" : [ ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2020-06-16T20:57:27Z",
"nvd_published_at" : null
}
}