CVE-2020-14338: redhat xerces Improper Input Validation
Vulnerability summary
CVE-2020-14338 is a medium (CVSS 5.3) Improper Input Validation vulnerability in redhat xerces. EPSS estimates a 1.29% chance of exploitation in the next 30 days, higher than 69.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 17-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in Wildfly's implementation of Xerces, specifically in the way the XMLSchemaValidator class in the JAXP component of Wildfly enforced the "use-grammar-pool-only" feature. This flaw allows a specially-crafted XML file to manipulate the validation process in certain cases. This issue is the same flaw as CVE-2020-14621, which affected OpenJDK, and uses a similar code. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · MavenEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS trend
Probability
1.29%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.29% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard1 product
- hadoop-fips-3.3.6< 3.3.6-r15
Redhat1 product
- xerces< 2.12.0 | 2.12.0:sp1 | 2.12.0:sp2
Xerces1 product
- xercesImpl< 2.12.0.sp3
3 vendors · 3 products
