CVE-2021-20289

21

FAUCET Score

CVE-2021-20289 is a data confidentiality flaw in RESTEasy, affecting versions up to 4.6.0.Final, and impacting products from NetApp, Oracle, Quarkus, and Red Hat. This vulnerability exposes endpoint class and method names in exception responses when RESTEasy fails to convert request URI path or query values. Rated Medium severity (CVSS 5.3), it requires no user interaction and has low impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 4.6.0CPE matchmatch criteria	cpe:2.3:a:redhat:resteasy::::::::
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:oncommand_insight:-:::::::*
		< 1.13.4CPE matchmatch criteria	cpe:2.3:a:quarkus:quarkus::::::::
		1.9.0CPE matchmatch criteria	cpe:2.3:a:oracle:communications_cloud_native_core_console:1.9.0:::::::*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

1.4

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.44%

Probability of exploitation in next 30 days

EPSS Percentile

70.4%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0144 is in the 52nd percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (62)

mavenpatch availablevia ghsa

Product: org.jboss.resteasy:resteasy-coreFixed in: 4.5.10

mavenpatch availablevia ghsa

Product: org.jboss.resteasy:resteasy-coreFixed in: 3.16.0

mavenpatch availablevia ghsa

Product: org.jboss.resteasy:resteasy-coreFixed in: 4.6.1

oraclepatch availablevia nvd_reference

redhatpatch availablevia redhat_api

Product: Red Hat EAP-XP 2 via EAP 7.3.x baseFixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: Red Hat Integration Camel Quarkus 2

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-apache-cxf-0:3.3.12-1.redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-ironjacamar-0:1.5.3-1.Final_redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-jakarta-el-0:3.0.3-3.redhat_00007.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-jboss-ejb-client-0:4.0.43-1.Final_redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-jboss-server-migration-0:1.7.2-10.Final_redhat_00011.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-jsoup-0:1.14.2-1.redhat_00002.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-resteasy-0:3.11.5-1.Final_redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-undertow-0:2.0.41-1.SP1_redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-wildfly-0:7.3.10-2.GA_redhat_00003.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-wildfly-elytron-0:1.10.15-1.Final_redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-wss4j-0:2.2.7-1.redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6Fixed in: eap7-xml-security-0:2.1.7-1.redhat_00001.1.el6eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-apache-cxf-0:3.3.12-1.redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-ironjacamar-0:1.5.3-1.Final_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-jakarta-el-0:3.0.3-3.redhat_00007.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-jboss-ejb-client-0:4.0.43-1.Final_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-jboss-server-migration-0:1.7.2-10.Final_redhat_00011.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-jsoup-0:1.14.2-1.redhat_00002.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-resteasy-0:3.11.5-1.Final_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-undertow-0:2.0.41-1.SP1_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-wildfly-0:7.3.10-2.GA_redhat_00003.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-wildfly-elytron-0:1.10.15-1.Final_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-wss4j-0:2.2.7-1.redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7Fixed in: eap7-xml-security-0:2.1.7-1.redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-apache-cxf-0:3.3.12-1.redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-ironjacamar-0:1.5.3-1.Final_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-jakarta-el-0:3.0.3-3.redhat_00007.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-jboss-ejb-client-0:4.0.43-1.Final_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-jboss-server-migration-0:1.7.2-10.Final_redhat_00011.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-jsoup-0:1.14.2-1.redhat_00002.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-resteasy-0:3.11.5-1.Final_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-undertow-0:2.0.41-1.SP1_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-wildfly-0:7.3.10-2.GA_redhat_00003.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-wildfly-elytron-0:1.10.15-1.Final_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-wss4j-0:2.2.7-1.redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 8Fixed in: eap7-xml-security-0:2.1.7-1.redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8Fixed in: eap7-resteasy-0:3.15.2-1.Final_redhat_00001.1.el8eap

redhatpatch availablevia redhat_api

Product: Red Hat Single Sign-On 7.4.10

redhatpatch availablevia redhat_api

Product: Red Hat Single Sign-On 7.5 for RHEL 7Fixed in: rh-sso7-keycloak-0:15.0.4-1.redhat_00001.1.el7sso

redhatpatch availablevia redhat_api

Product: Red Hat Single Sign-On 7.5 for RHEL 8Fixed in: rh-sso7-keycloak-0:15.0.4-1.redhat_00001.1.el8sso

redhatpatch availablevia redhat_api

Product: Red Hat Support for Spring Boot 2.5.10Fixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: RHAF Camel-K 1.8Fixed in: resteasy-core

redhatpatch availablevia redhat_api

Product: RHEL-8 based Middleware ContainersFixed in: rh-sso-7/sso75-openshift-rhel8:7.5-15

redhatpatch availablevia redhat_api

Product: RHINT Service Registry 2.0.2 GAFixed in: resteasy-core

redhatpatch availablevia redhat_api

Product: RHSSO 7.5.1Fixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7Fixed in: eap7-resteasy-0:3.15.2-1.Final_redhat_00001.1.el7eap

redhatpatch availablevia redhat_api

Product: EAP 7.3.10 GAFixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: Red Hat AMQ 7.9.0Fixed in: resteasy-jaxrs

redhatpatch availablevia redhat_api

Product: Red Hat build of Quarkus 2.2.3Fixed in: resteasy-core

redhatvendor investigatingvia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: pki-deps:10.6/resteasy

redhatvendor investigatingvia redhat_api

Product: Red Hat Satellite 6Fixed in: candlepin

redhatno patchvia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: resteasy

redhatno patchvia redhat_api

Product: Red Hat Fuse 7Fixed in: resteasy-core

redhatno patchvia redhat_api

Product: Red Hat Integration Camel K 1Fixed in: resteasy-core

redhatno patchvia redhat_api

Product: Red Hat support for Spring BootFixed in: resteasy-jaxrs

Vendor Advisories (2)

mavenGHSA-244r-fcj3-ghjqmedium

Exposure of class information in RESTEasy

redhatCVE-2021-20289Low

resteasy: Error message exposes endpoint class information

References

bugzilla.redhat.com / show_bug.cgi

Issue TrackingThird Party Advisory

oracle.com / security-alerts/cpuapr2022.html

PatchThird Party Advisory