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Fencer Intel
medium 5.4

CVE-2019-3894 json

It was discovered that the ElytronManagedThread in Wildfly's Elytron subsystem in versions from 11 to 16 stores a SecurityIdentity to run t…

published 7y ago modified 4mo ago also EUVD-2019-13503

cvss
5.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

It was discovered that the ElytronManagedThread in Wildfly's Elytron subsystem in versions from 11 to 16 stores a SecurityIdentity to run the thread as. These threads do not necessarily terminate if the keep alive time has not expired. This could allow a shared thread to use the wrong security identity when executing.

Patch / fix

  • eap7-dom4j jboss enterprise application platform 7.2 2.1.1-2.redhat_00001.1.el7eap
  • eap7-jberet jboss enterprise application platform 7.2 1.3.2-1.Final_redhat_00001.1.el7eap
  • eap7-yasson jboss enterprise application platform 7.2 1.0.2-1.redhat_00001.1.el7eap
  • eap7-wildfly jboss enterprise application platform 7.2 7.2.1-6.GA_redhat_00004.1.el7eap
  • eap7-narayana jboss enterprise application platform 7.2 5.9.1-1.Final_redhat_00001.1.el7eap
  • eap7-resteasy jboss enterprise application platform 7.2 3.6.1-4.SP3_redhat_00001.1.el7eap
  • eap7-undertow jboss enterprise application platform 7.2 2.0.19-1.Final_redhat_00001.1.el7eap
  • eap7-hibernate jboss enterprise application platform 7.2 5.3.9-2.Final_redhat_00002.1.el7eap

red hat advisories RHSA-2019:1108RHSA-2019:1107

Is CVE-2019-3894 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-3894 updated cvss 5.4

wildfly: wrong SecurityIdentity for EE concurrency threads that are reused

  • Red Hat JBoss EAP 7.2
    fixed: vendor fix RHSA-2019:1106
  • Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-dom4j 2.1.1-2.redhat_00001.1.el6eap, eap7-yasson 1.0.2-1.redhat_00001.1.el6eap, eap7-apache-cxf 3.2.7-1.redhat_00001.1.el6eap, eap7-byte-buddy 1.9.5-1.redhat_00001.1.el6eap, eap7-cxf-xjc-dv 3.2.3-2.redhat_00002.1.el6eap, eap7-cxf-xjc-ts 3.2.3-2.redhat_00002.1.el6eap, +152 more
    fixed: vendor fix RHSA-2019:1107
  • Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-dom4j 2.1.1-2.redhat_00001.1.el7eap, eap7-yasson 1.0.2-1.redhat_00001.1.el7eap, eap7-apache-cxf 3.2.7-1.redhat_00001.1.el7eap, eap7-byte-buddy 1.9.5-1.redhat_00001.1.el7eap, eap7-cxf-xjc-dv 3.2.3-2.redhat_00002.1.el7eap, eap7-cxf-xjc-ts 3.2.3-2.redhat_00002.1.el7eap, +154 more
    fixed: vendor fix RHSA-2019:1108
  • Red Hat Single Sign-On 7.3.1 zip
    fixed: vendor fix RHSA-2019:1140

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Red Hat wildfly

Classification

Weakness
  • CWE-358 Improperly Implemented Security Check for Standard

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.