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Vulnerability details: VCID-bznx-gnst-3qgd
Vulnerability ID VCID-bznx-gnst-3qgd
Aliases CVE-2020-1748
GHSA-qgrq-cx4c-2rmm
Summary Incorrect Authorization in WildFly Elytron 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-863 Incorrect Authorization
CWE-285 Improper Authorization
System Score Found at
cvssv3 4.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-1748.json
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
epss 0.0031 https://api.first.org/data/v1/epss?cve=CVE-2020-1748
cvssv3.1 7.5 https://bugzilla.redhat.com/show_bug.cgi?id=1807707
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=1807707
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-qgrq-cx4c-2rmm
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-1748
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-1748
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20201001-0005
generic_textual HIGH https://security.netapp.com/advisory/ntap-20201001-0005
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-1748.json
https://api.first.org/data/v1/epss?cve=CVE-2020-1748
https://bugzilla.redhat.com/show_bug.cgi?id=1807707
https://security.netapp.com/advisory/ntap-20201001-0005
https://security.netapp.com/advisory/ntap-20201001-0005/
CVE-2020-1748 https://nvd.nist.gov/vuln/detail/CVE-2020-1748
GHSA-qgrq-cx4c-2rmm https://github.com/advisories/GHSA-qgrq-cx4c-2rmm
RHSA-2020:3779 https://access.redhat.com/errata/RHSA-2020:3779
RHSA-2020:4960 https://access.redhat.com/errata/RHSA-2020:4960
RHSA-2020:4961 https://access.redhat.com/errata/RHSA-2020:4961
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-1748.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=1807707
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-1748
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://security.netapp.com/advisory/ntap-20201001-0005
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.54075
EPSS Score 0.0031
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:49:34.220790+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.wildfly.security/wildfly-elytron/CVE-2020-1748.yml 38.0.0