CVE-2019-12400: apache apache santuario - xml security for java Improper Input Validation
Vulnerability summary
CVE-2019-12400 is a medium (CVSS 5.5) Improper Input Validation vulnerability in apache apache santuario - xml security for java. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.8% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 23-08-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In version 2.0.3 Apache Santuario XML Security for Java, a caching mechanism was introduced to speed up creating new XML documents using a static pool of DocumentBuilders. However, if some untrusted code can register a malicious implementation with the thread context class loader first, then this implementation might be cached and re-used by Apache Santuario - XML Security for Java, leading to potential security flaws when validating signed documents, etc. The vulnerability affects Apache Santuario - XML Security for Java 2.0.x releases from 2.0.3 and all 2.1.x releases before 2.1.4.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- OSV · MavenEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.78%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.78% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Apache2 products
- apache santuario - xml security for javaAll 2.0.x releases from 2.0.3 | all 2.1.x releases before 2.1.4.
- santuario_xml_security_for_java≥ 2.0.3, ≤ 2.0.10 | ≥ 2.1.0, < 2.1.4
Debian1 product
- libxml-security-java< 2.1.7-1
Oracle1 product
- weblogic_server12.2.1.4.0 | 14.1.1.0.0
Org.apache.santuario1 product
- xmlsec≥ 2.0.3, < 2.1.4
Redhat1 product
Ubuntu1 product
- libxml-security-javaAll versions (No fix recorded)
6 vendors · 7 products
References
27 linksShow all 27 references
- santuario.apache.org/secadv.data/CVE-2019-12400.asc?version=1&modificationDate=1566573083000&api=v2X Refsource CONFIRMVendor AdvisoryREPORTWEB
