{ "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-2026-101333", "tracking": { "current_release_date": "2026-09-30T18:41:55.883851Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-101333", "initial_release_date": "2026-09-28T15:35:06.808956Z", "revision_history": [ { "date": "2026-09-28T15:35:06.808956Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-09-28T15:38:36.048091Z", "number": "2", "summary": "CVSS created.| CWES created (1).| Unknown change.| Products created (2).| References created (2).| Description created for source.| Unknown change.| Product Identifiers created (2)." }, { "date": "2026-09-28T15:38:40.071871Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-09-28T15:41:57.303239Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-09-28T15:42:08.045152Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-09-29T11:07:27.373097Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Products connected (1).| Product Identifiers created (1).| References created (4)." }, { "date": "2026-09-29T11:07:29.576750Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-09-29T12:42:54.454978Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (5).| Product Identifiers created (2).| Product Remediations created (5).| References created (2).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-09-29T12:43:01.169231Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-09-29T16:12:45.530201Z", "number": "10", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:12:51.646584Z", "number": "11", "summary": "NCSC Score updated." } ], "status": "interim", "version": "11" } }, "product_tree": { "branches": [ { "branches": [ { "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_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-9414018", "product_identification_helper": { "cpe": "cpe:/a:redhat:build_keycloak:" } } } ], "category": "product_name", "name": "Red Hat Build of Keycloak" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/7", "product": { "name": "vers:rpm/7", "product_id": "CSAFPID-1439308", "product_identification_helper": { "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7" } } }, { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-9399677", "product_identification_helper": { "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7" } } } ], "category": "product_name", "name": "Red Hat Single Sign-On 7" }, { "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" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2152775" } } ], "category": "product_name", "name": "keycloak-services" } ], "category": "product_family", "name": "Red Hat Build of Keycloak" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2563053" } } ], "category": "product_name", "name": "keycloak-services" } ], "category": "product_family", "name": "Red Hat Single Sign-On 7" } ], "category": "vendor", "name": "Red Hat" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-101333", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "description", "text": "A flaw was found in the Micrometer user-event metrics listener of Keycloak, a solution for integrated identity and access management. The issue occurs when the listener is configured to include the idp tag. An unauthenticated attacker can send requests to the identity broker login endpoint using arbitrary provider aliases, causing the system to create an unlimited number of metric time series. This can lead to excessive memory consumption and degrade the performance of both the server and its monitoring tools.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-101333" }, { "category": "description", "text": "A flaw was found in the Micrometer user-event metrics listener of Keycloak, a solution for integrated identity and access management. The issue occurs when the listener is configured to include the idp tag. An unauthenticated attacker can send requests to the identity broker login endpoint using arbitrary provider aliases, causing the system to create an unlimited number of metric time series. This can lead to excessive memory consumption and degrade the performance of both the server and its monitoring tools.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-101333" }, { "category": "description", "text": "A flaw was found in the Micrometer user-event metrics listener of Keycloak, a solution for integrated identity and access management. The issue occurs when the listener is configured to include the idp tag. An unauthenticated attacker can send requests to the identity broker login endpoint using arbitrary provider aliases, causing the system to create an unlimited number of metric time series. This can lead to excessive memory consumption and degrade the performance of both the server and its monitoring tools.\nThe Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that it requires the Micrometer user-event metrics listener to be explicitly enabled with the idp tag configuration. Successful exploitation allows an attacker to cause resource exhaustion and degrade monitoring performance by creating an unbounded number of metric time series. The vulnerability's root cause is a lack of cardinality capping for the idp tag in the metrics event listener.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-101333" }, { "category": "other", "text": "0.0023", "title": "EPSS" }, { "category": "other", "text": "3.7", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent EPSS score, There is cwe data available from source Nvd, The value of the most recent CVSS (V3) score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-2170821", "CSAFPID-1439290", "CSAFPID-2152775", "CSAFPID-5011677" ], "known_not_affected": [ "CSAFPID-1439308", "CSAFPID-2563053" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101333" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-101333" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101333" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3614.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-101333" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; nvd", "url": "https://access.redhat.com/security/cve/CVE-2026-101333" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2542498" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/advisories/GHSA-5FH4-QP8Q-2WXM" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3614.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3614" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101333" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101333" } ], "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-1439308", "CSAFPID-2152775", "CSAFPID-2563053", "CSAFPID-5011677" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "baseScore": 3.7, "baseSeverity": "LOW" }, "products": [ "CSAFPID-1439290", "CSAFPID-2152775", "CSAFPID-2170821", "CSAFPID-5011677" ] } ], "title": "CVE-2026-101333" } ] }