How severe is CVE-2020-1748?

CVE-2020-1748 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2020-1748?

CVE-2020-1748 affects the following packages: org.wildfly.security:wildfly-elytron (Maven). Ecosystems affected: Maven.

How do I fix CVE-2020-1748?

Update org.wildfly.security:wildfly-elytron to 1.6.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-1748 is resolved across your whole dependency graph.

How do I detect CVE-2020-1748 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.wildfly.security:wildfly-elytron, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2020-1748 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2020-1748 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-1748 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2020-1748?

CVE-2020-1748 has an EPSS (Exploit Prediction Scoring System) score of 1.4%, placing it in the 73th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was CVE-2020-1748 published, and has it been updated?

CVE-2020-1748 was published on February 15, 2022 and was last updated on September 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2020-1748 — wildfly-elytron

HIGH

CVE-2020-1748 is a high-severity (CVSS 7.5) vulnerability in org.wildfly.security:wildfly-elytron. A fix is available for org.wildfly.security:wildfly-elytron — see the affected versions and patch details below.

Incorrect Authorization in WildFly Elytron

Published

Feb 15, 2022

Updated

Sep 10, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs73th percentile — riskier than 73% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

☕org.wildfly.security:wildfly-elytron

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A flaw was found in all supported versions before wildfly-elytron-1.6.8.Final-redhat-00001, where the WildFlySecurityManager checks were bypassed when using custom security managers, resulting in an improper authorization. This flaw leads to information exposure by unauthenticated access to secure resources.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.wildfly.security:wildfly-elytron`	all versions	1.6.8`org.wildfly.security:wildfly-elytron:1.6.8`

Affected Products

3 products · 3 configurations

Application

decision managerredhat

1 version

7.0

Application

process automationredhat

1 version

7.0

Application

wildfly elytronredhat

< 1.6.8.final-redhat-00001

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.wildfly.security:wildfly-elytron, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.wildfly.security:wildfly-elytron to 1.6.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-1748 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatModerate

Product	Fixed in	Advisory
Red Hat Data Grid 7.3.7	`wildfly`	RHSA-2020:3779
Red Hat JBoss Enterprise Application Platform 7	`wildfly`	RHSA-2020:3642
Red Hat JBoss Enterprise Application Platform 7	`wildfly`	RHSA-2020:3464
Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 6	`eap7-dom4j-0:2.1.3-1.redhat_00001.1.el6eap`	RHSA-2020:3637
Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 7	`eap7-dom4j-0:2.1.3-1.redhat_00001.1.el7eap`	RHSA-2020:3638
Red Hat JBoss Enterprise Application Platform 7.2 for RHEL 8	`eap7-dom4j-0:2.1.3-1.redhat_00001.1.el8eap`	RHSA-2020:3639
Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 6	`eap7-dom4j-0:2.1.3-1.redhat_00001.1.el6eap`	RHSA-2020:3461
Red Hat JBoss Enterprise Application Platform 7.3 for RHEL 7	`eap7-dom4j-0:2.1.3-1.redhat_00001.1.el7eap`	RHSA-2020:3462

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2020-1748 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

7.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Raw vector

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

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Feb 15, 2022

Last updated

Sep 10, 2026

Identifiers

CVE-2020-1748

References

Advisorynvd.nist.gov · CVE 2020 1748 Webbugzilla.redhat.com · show bug.cgi Websecurity.netapp.com · ntap 20201001 0005

Related vulnerabilities

This CVE is high severity; 2 of 4 other CVEs affecting wildfly-elytron are rated as high or higher (top: high).

CVE-2024-12369CVE-2022-3143CVE-2021-3642CVE-2020-10714

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedSep 10, 2026

CVE-2020-1748 — wildfly-elytron

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Fixing This On Your OS

Frequently Asked Questions

Is CVE-2020-1748 in your dependencies?