CVE-2026-3911
lowpriority · track · 0EPSS 0.004 · 34 %ileDEEUJPUSEPSS · scored 2026-10-23
A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0693Keycloak: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2026-03-10csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Informationen offenzulegen.
- GHSA-xh32-c9wx-phrpKeycloak: Information disclosure of disabled user attributes via administrative endpoint2026-03-11ghsa · osvUS
A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.
- BIT-keycloak-2026-3911Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of disabled user attributes via administrative endpoint2026-08-25vendor · osvUS
A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.
- JVNDB-2026-026852JVN iPedia advisory JVNDB-2026-0268522026-08-05vendor · jvndbJP
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-3911cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2446392cnnvd
- https://vigilance.fr/vulnerability/Keycloak-multiple-vulnerabilities-dated-19-03-2026-50100cnnvd
- https://access.redhat.com/errata/RHSA-2026:6477enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:6478enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-3911enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2446392enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:6477Vendor Advisorynvd
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