{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-3911", "tracking": { "current_release_date": "2026-04-03T00:48:47.079154Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-3911", "initial_release_date": "2026-03-11T06:25:31.469595Z", "revision_history": [ { "date": "2026-03-11T06:25:31.469595Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-11T06:25:39.637025Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-11T06:38:53.712504Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-11T06:39:04.167450Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-11T11:05:44.590464Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Products connected (1).| Product Identifiers created (1).| References created (5)." }, { "date": "2026-03-11T11:05:50.484802Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-11T14:38:51.872929Z", "number": "7", "summary": "Unknown change." }, { "date": "2026-03-11T14:53:21.140289Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-11T14:53:23.070918Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-12T16:15:37.066681Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-03-12T16:15:43.705793Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-13T00:28:02.771060Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| Product Identifiers created (1).| Product Remediations created (2).| References created (2).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-13T00:28:06.357106Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-19T09:26:23.520749Z", "number": "14", "summary": "Products connected (1).| References created (1)." }, { "date": "2026-03-19T09:26:25.646394Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:29:27.959730Z", "number": "16", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-03-20T09:27:32.029014Z", "number": "17", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-02T14:25:50.089659Z", "number": "18", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-04-02T14:26:00.256202Z", "number": "19", "summary": "NCSC Score updated." }, { "date": "2026-04-02T14:40:07.705118Z", "number": "20", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| Product Identifiers created (2).| References created (4).| CWES updated (1).| Unknown change." }, { "date": "2026-04-03T00:31:56.197641Z", "number": "21", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| Product Remediations created (2).| References created (7).| CWES updated (1)." }, { "date": "2026-04-03T00:31:58.307208Z", "number": "22", "summary": "NCSC Score updated." }, { "date": "2026-04-03T00:34:45.777116Z", "number": "23", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (4).| Product Remediations created (8).| Product Identifiers created (8).| Product Identifiers removed (8).| References created (7).| CWES updated (1)." } ], "status": "interim", "version": "23" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<26.5.6", "product": { "name": "vers:unknown/<26.5.6", "product_id": "CSAFPID-5847377" } } ], "category": "product_name", "name": "Keycloak" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-2170821", "product_identification_helper": { "cpe": "cpe:/a:keycloak:keycloak:-" } } } ], "category": "product_name", "name": "Open Source Keycloak" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1439290", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:" } } } ], "category": "product_name", "name": "Red Hat Build of Keycloak" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/26.4", "product": { "name": "vers:rpm/26.4", "product_id": "CSAFPID-5187750", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:26.4::el9" } } } ], "category": "product_name", "name": "Red Hat build of Keycloak 26.4" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/26.4", "product": { "name": "vers:rpm/26.4", "product_id": "CSAFPID-5986076", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:26.4::el9" } } } ], "category": "product_name", "name": "Red Hat build of Keycloak 26.4.11" }, { "branches": [ { "category": "product_version_range", "name": "vers:oci/26.4.11-1", "product": { "name": "vers:oci/26.4.11-1", "product_id": "CSAFPID-5986183", "product_identification_helper": { "purl": "pkg:oci/keycloak-operator-bundle@sha256:7fb041b0e2b43954c3a83b58fd885b1cdc5bb32275e06c4c72955da5b78255c3?arch=amd64&repository_url=registry.redhat.io/rhbk/keycloak-operator-bundle&tag=26.4.11-1" } } } ], "category": "product_name", "name": "keycloak-operator-bundle" }, { "branches": [ { "category": "product_version_range", "name": "vers:oci/26.4-14", "product": { "name": "vers:oci/26.4-14", "product_id": "CSAFPID-5986185", "product_identification_helper": { "purl": "pkg:oci/keycloak-rhel9@sha256:dc54248ad9357fbd737e6983e6d8d0c7e845e39ed6558bd7c39f7a7573459489?arch=amd64&repository_url=registry.redhat.io/rhbk/keycloak-rhel9&tag=26.4-14" } } } ], "category": "product_name", "name": "keycloak-rhel9" }, { "branches": [ { "category": "product_version_range", "name": "vers:oci/26.4-14", "product": { "name": "vers:oci/26.4-14", "product_id": "CSAFPID-5986184", "product_identification_helper": { "purl": "pkg:oci/keycloak-rhel9-operator@sha256:c68d195c2d19568d9789648ef347a3388da453c83120d696453333c34a564347?arch=arm64&repository_url=registry.redhat.io/rhbk/keycloak-rhel9-operator&tag=26.4-14" } } } ], "category": "product_name", "name": "keycloak-rhel9-operator" } ], "category": "product_family", "name": "Red Hat build of Keycloak" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/26.4-14|<*", "product": { "name": "vers:rpm/26.4-14|<*", "product_id": "CSAFPID-5984837", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:26.4::el9" } } }, { "category": "product_version_range", "name": "vers:rpm/26.4.11-1|<*", "product": { "name": "vers:rpm/26.4.11-1|<*", "product_id": "CSAFPID-5984838", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:26.4::el9" } } } ], "category": "product_name", "name": "Red Hat build of Keycloak 26.4" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5011677" } } ], "category": "product_name", "name": "keycloak-rhel9" } ], "category": "product_family", "name": "Red Hat Build of Keycloak" } ], "category": "vendor", "name": "Red Hat" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-3911", "cwe": { "id": "CWE-359", "name": "Exposure of Private Personal Information to an Unauthorized Actor" }, "notes": [ { "category": "description", "text": "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.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-3911" }, { "category": "description", "text": "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.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-3911" }, { "category": "description", "text": "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.", "title": "github - https://github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "description", "text": "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.\nThis is a LOW impact flaw in Keycloak where disabled unmanaged user attributes are disclosed. An authenticated user with the `view-users` role can access attributes that are configured to be hidden from both users and administrators, violating the intended privacy settings.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-3911" }, { "category": "description", "text": "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.", "title": "github - https://api.github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "description", "text": "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.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3911" }, { "category": "description", "text": "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.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3911.json" }, { "category": "description", "text": "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.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2026:6477.json" }, { "category": "description", "text": "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.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2026:6478.json" }, { "category": "other", "text": "0.00033", "title": "EPSS" }, { "category": "other", "text": "3.9", "title": "NCSC Score" }, { "category": "other", "text": "VENDOR FIX as product remediation category, There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd, Is related to (a version of) an uncommon product, The value of the most recent EPSS score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 1\n", "title": "Vendor assessment" } ], "product_status": { "fixed": [ "CSAFPID-5986076", "CSAFPID-5986183", "CSAFPID-5986184", "CSAFPID-5986185" ], "known_affected": [ "CSAFPID-2170821", "CSAFPID-1439290", "CSAFPID-5011677", "CSAFPID-5847377" ], "known_not_affected": [ "CSAFPID-5984837", "CSAFPID-5984838" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3911" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3911" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-3911" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3911.json" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0693.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-3911" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-3911" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-3911.json" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3911" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3911.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2026:6477.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/csaf/RHSA-2026:6478.json" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-3911" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; github; nvd; redhat", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446392" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0693.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0693" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://access.redhat.com/security/cve/cve-2026-3911" }, { "category": "external", "summary": "Reference - certbundde; github; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3911" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/keycloak/keycloak/issues/46922" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/keycloak/keycloak/pull/46923" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/keycloak/keycloak/commit/215bc1e27230f2a66670ed70262248b5f5254eb9" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-xh32-c9wx-phrp" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-3911" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://www.keycloak.org/2026/03/keycloak-2656-released" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; redhat", "url": "https://access.redhat.com/errata/RHSA-2026:6477" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; redhat", "url": "https://access.redhat.com/errata/RHSA-2026:6478" }, { "category": "external", "summary": "Reference - redhat", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "Reference - redhat", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6477.json" }, { "category": "external", "summary": "Reference - redhat", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6478.json" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.", "product_ids": [ "CSAFPID-1439290", "CSAFPID-5011677" ] }, { "category": "vendor_fix", "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.", "product_ids": [ "CSAFPID-5986076" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:6477" }, { "category": "workaround", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.", "product_ids": [ "CSAFPID-5986076", "CSAFPID-5187750", "CSAFPID-5986183", "CSAFPID-5986184", "CSAFPID-5986185" ] }, { "category": "vendor_fix", "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.", "product_ids": [ "CSAFPID-5187750", "CSAFPID-5986183", "CSAFPID-5986184", "CSAFPID-5986185" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2026:6478" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N", "baseScore": 2.7, "baseSeverity": "LOW" }, "products": [ "CSAFPID-1439290", "CSAFPID-2170821", "CSAFPID-5011677", "CSAFPID-5847377" ] } ], "title": "CVE-2026-3911" } ] }