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Fencer Vulns
medium 5.9

CVE-2020-27822 json

Wildfly has a memory leak vulnerability

published 2020-12-08 5 y ago modified 2026-09-08 2 mo ago also BIT-wildfly-2020-27822 , EUVD-2022-5055 , GHSA-qx3p-9mmp-4v8h

cvss
5.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

A flaw was found in Wildfly affecting versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final. When an application uses the OpenTracing API's java-interceptors, there is a possibility of a memory leak. This flaw allows an attacker to impact the availability of the server. The highest threat from this vulnerability is to system availability.

Patch / fix

  • maven org.wildfly:wildfly-parent 21.0.2.Final, 22.0.0.Beta1
  • bitnami wildfly 19.0.1, 19.1.1, 20.0.1, 20.0.2, 21.0.1
  • eap7-wildfly jboss enterprise application platform 7.3 7.3.5-2.GA_redhat_00001.1.el8eap
  • eap7-narayana jboss enterprise application platform 7.3 5.9.10-1.Final_redhat_00001.1.el8eap
  • eap7-resteasy jboss enterprise application platform 7.3 3.11.3-1.Final_redhat_00001.1.el8eap
  • eap7-undertow jboss enterprise application platform 7.3 2.0.33-1.SP2_redhat_00001.1.el8eap
  • eap7-hibernate jboss enterprise application platform 7.3 5.3.20-1.Final_redhat_00001.1.el8eap
  • eap7-hal-console jboss enterprise application platform 7.3 3.2.12-1.Final_redhat_00001.1.el8eap
  • eap7-resteasy-cdi jboss enterprise application platform 7.3 3.11.3-1.Final_redhat_00001.1.el8eap
  • eap7-glassfish-jsf jboss enterprise application platform 7.3 2.3.9-12.SP13_redhat_00001.1.el8eap

red hat advisories RHSA-2021:0248RHSA-2021:0247RHSA-2021:0246

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-2020-27822 updated cvss 5.9

wildfly: Potential Memory leak in Wildfly when using OpenTracing

  • Red Hat JBoss Data Grid 7 wildfly wildfly Red Hat JBoss Data Virtualization 6 jbossas jbossas, wildfly wildfly Red Hat JBoss Enterprise Application Platform 5 jbossas jbossas Red Hat JBoss Enterprise Application Platform 6 jbossas jbossas
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform Expansion Pack wildfly wildfly
    affected: no fix available
  • Red Hat JBoss Fuse 6 wildfly wildfly Red Hat JBoss Operations Network 3 wildfly wildfly Red Hat JBoss SOA Platform 5 jbossas jbossas
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Application Runtimes wildfly wildfly Red Hat Single Sign-On 7 wildfly wildfly
    affected: no fix available
  • Red Hat EAP-XP 1.0.4
    fixed: vendor fix RHSA-2021:0317
  • Red Hat JBoss EAP 7.3 for BaseOS-8 eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el8eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el8eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el8eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el8eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el8eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el8eap, +90 more
    fixed: vendor fix RHSA-2021:0248
  • Red Hat JBoss EAP 7.3 for RHEL 6 Server eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el6eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el6eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el6eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el6eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el6eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el6eap, +90 more
    fixed: vendor fix RHSA-2021:0246
  • Red Hat JBoss EAP 7.3 for RHEL 7 Server eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el7eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el7eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el7eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el7eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el7eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el7eap, +92 more
    fixed: vendor fix RHSA-2021:0247
show 4 more
  • Red Hat JBoss Enterprise Application Platform 7
    fixed: vendor fix RHSA-2021:0250
  • Red Hat Single Sign-On 7.4.5
    fixed: vendor fix RHSA-2021:0327
  • Red Hat Text-Only RHOAR
    fixed: vendor fix RHSA-2021:0295
  • Red Hat Data Grid 8 wildfly wildfly Red Hat Decision Manager 7 wildfly wildfly Red Hat Fuse 7 wildfly wildfly Red Hat Process Automation 7 wildfly wildfly
    not affected: vulnerable code not present

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

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C
OSV 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.wildfly:wildfly-parent
>=19.0.0.Final, <21.0.2.Final
>=22.0.0.Alpha1, <22.0.0.Beta1
21.0.2.Final
22.0.0.Beta1
bitnami wildfly
>=19.0.0, <19.0.1
>=19.1.0, <19.1.1
>=20.0.0, <20.0.1
>=20.0.1, <20.0.2
>=21.0.0, <21.0.1
19.0.1
19.1.1
20.0.1
20.0.2
21.0.1

Affected products

  • n/a wildfly

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime

References

Sources

Fencer Vulns 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.