{ "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-2026-10101", "tracking": { "current_release_date": "2026-09-02T23:34:27.109099Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-10101", "initial_release_date": "2026-05-29T16:43:07.905235Z", "revision_history": [ { "date": "2026-05-29T16:43:07.905235Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-05-29T16:43:09.823830Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-05-29T16:53:52.155621Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-05-29T16:53:57.728116Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-05-29T21:02:22.804379Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-05-30T00:27:59.237281Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| Product Identifiers created (1).| References created (2).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-05-30T00:28:02.697099Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-05-30T16:05:04.996418Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-05-30T16:05:14.925095Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-06-15T18:01:21.524684Z", "number": "10", "summary": "EPSS updated." }, { "date": "2026-06-15T18:01:23.459276Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-07-10T03:02:57.895812Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-07-10T03:03:05.480397Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-07-22T03:28:03.193363Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-08-11T15:12:04.327702Z", "number": "15", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-09-02T10:45:54.669008Z", "number": "16", "summary": "EPSS updated." }, { "date": "2026-09-02T23:34:26.712869Z", "number": "17", "summary": "NCSC Score updated." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1441056", "product_identification_helper": { "cpe": "cpe:/a:redhat:multicluster_engine" } } } ], "category": "product_name", "name": "Multicluster Engine for Kubernetes" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1441059" } } ], "category": "product_name", "name": "assisted-service-9-rhel9" } ], "category": "product_family", "name": "Multicluster Engine for Kubernetes" } ], "category": "vendor", "name": "Red Hat" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-10101", "cwe": { "id": "CWE-201", "name": "Insertion of Sensitive Information Into Sent Data" }, "notes": [ { "category": "description", "text": "ACM/MCE assisted-service writes raw referenced pull-secret contents into `InfraEnv.status.conditions[].message` when pull-secret validation fails. A namespace principal with the stock `view` ClusterRole cannot directly read Secrets, but can read `InfraEnv` objects and recover the referenced Secret's `.dockerconfigjson` data from status.\n\nThis bypasses the Kubernetes/OpenShift RBAC separation between read-only namespace viewers and Secret readers. In the reproduced proof, the same ServiceAccount was denied `get` and `list` on Secrets, but recovered synthetic pull-secret `username`, `password`, `email`, and base64 `auth` fields through `InfraEnv.status`.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10101.json" }, { "category": "description", "text": "ACM/MCE assisted-service writes raw referenced pull-secret contents into `InfraEnv.status.conditions[].message` when pull-secret validation fails. A namespace principal with the stock `view` ClusterRole cannot directly read Secrets, but can read `InfraEnv` objects and recover the referenced Secret's `.dockerconfigjson` data from status.\n\nThis bypasses the Kubernetes/OpenShift RBAC separation between read-only namespace viewers and Secret readers. In the reproduced proof, the same ServiceAccount was denied `get` and `list` on Secrets, but recovered synthetic pull-secret `username`, `password`, `email`, and base64 `auth` fields through `InfraEnv.status`.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10101" }, { "category": "description", "text": "ACM/MCE assisted-service writes raw referenced pull-secret contents into `InfraEnv.status.conditions[].message` when pull-secret validation fails. A namespace principal with the stock `view` ClusterRole cannot directly read Secrets, but can read `InfraEnv` objects and recover the referenced Secret's `.dockerconfigjson` data from status.\nThis bypasses the Kubernetes/OpenShift RBAC separation between read-only namespace viewers and Secret readers. In the reproduced proof, the same ServiceAccount was denied `get` and `list` on Secrets, but recovered synthetic pull-secret `username`, `password`, `email`, and base64 `auth` fields through `InfraEnv.status`.\nRed Hat rates this flaw as Moderate impact. Exploitation requires a namespace \"view\" user to be in a namespace where an InfraEnv references a pull secret that fails assisted-service validation -- a condition the \"view\" user cannot trigger themselves. Red Hat scores UI:R (User Interaction Required) because the leak only exists when an administrator creates or updates an InfraEnv referencing a pull secret that fails validation; without that admin action, there is nothing to exploit. The direct impact is confidentiality: the full pull-secret content is disclosed through InfraEnv status, bypassing the Kubernetes RBAC boundary that prevents \"view\" users from reading Secrets. Red Hat scores I:L (Integrity: Low) rather than I:H because, with Scope: Unchanged, integrity impact should reflect the vulnerable component (MCE/ACM), not external registries. The leaked credential's write capability is conditional on the specific credential's permissions and does not represent integrity compromise of the ACM/MCE cluster itself.\nThe reporter agreed with the new CVSS score.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-10101.json" }, { "category": "other", "text": "0.00182", "title": "EPSS" }, { "category": "other", "text": "3.8", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-201 (Insertion of Sensitive Information Into Sent Data)", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is cwe data available from source Nvd, The value of the most recent EPSS score", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-1441056", "CSAFPID-1441059" ] }, "references": [ { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/10xxx/CVE-2026-10101.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10101" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-10101.json" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-10101" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://access.redhat.com/security/cve/CVE-2026-10101" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483298" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-10101" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10101" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N", "baseScore": 6.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1441056", "CSAFPID-1441059" ] } ], "title": "CVE-2026-10101" } ] }