Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-xh32-c9wx-phrp
Advisory ID github_osv/GHSA-xh32-c9wx-phrp
Aliases CVE-2026-3911
Summary Keycloak: Information disclosure of disabled user attributes via administrative endpoint 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.
Status Published
Exploitability 0.5
Weighted Severity 2.4
Risk 1.2
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-359 Exposure of Private Personal Information to an Unauthorized Actor
System Score Found at
cvssv3.1 2.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xh32-c9wx-phrp/GHSA-xh32-c9wx-phrp.json
generic_textual LOW
Reference id Reference type URL
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/commit/215bc1e27230f2a66670ed70262248b5f5254eb9
https://github.com/keycloak/keycloak/issues/46922
https://github.com/keycloak/keycloak/pull/46923
CVE-2026-3911 Advisory https://access.redhat.com/security/cve/CVE-2026-3911
CVE-2026-3911 https://nvd.nist.gov/vuln/detail/CVE-2026-3911
RHSA-2026:6477 Advisory https://access.redhat.com/errata/RHSA-2026:6477
RHSA-2026:6478 Advisory https://access.redhat.com/errata/RHSA-2026:6478
show_bug.cgi?id=2446392 Bug https://bugzilla.redhat.com/show_bug.cgi?id=2446392
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xh32-c9wx-phrp/GHSA-xh32-c9wx-phrp.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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-11T14:03:16Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/3xxx/CVE-2026-3911.json

Source Advisory: vulnrichment/CVE-2026-3911

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]