GHSA-XH32-C9WX-PHRP

Vulnerability from github – Published: 2026-03-11 06:31 – Updated: 2026-03-12 14:42
VLAI?
Summary
Keycloak: Information disclosure of disabled user attributes via administrative endpoint
Details

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.

Severity ?
2.7 (Low)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "26.5.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-3911"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-359"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-12T14:42:34Z",
    "nvd_published_at": "2026-03-11T06:17:15Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-xh32-c9wx-phrp",
  "modified": "2026-03-12T14:42:34Z",
  "published": "2026-03-11T06:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3911"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/46922"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/pull/46923"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/215bc1e27230f2a66670ed70262248b5f5254eb9"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3911"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446392"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak: Information disclosure of disabled user attributes via administrative endpoint"
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.