{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66795 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66795 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66795 is a critical vulnerability in Red Hat multicluster engine for Kubernetes 2.10, published on 17 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66795 and fix it if it is affected.\n\nWhat it is: CVE-2026-66795 is a critical vulnerability in Red Hat multicluster engine for Kubernetes 2.10, published on 17 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-66795 in the wild and no public exploit code.\n\nAffected product: Red Hat multicluster engine for Kubernetes 2.10. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-66795/ (Markdown: https://insights.sbomify.com/CVE-2026-66795/index.md)","id":"CVE-2026-66795","markdown":"https://insights.sbomify.com/CVE-2026-66795/index.md","name":"CVE-2026-66795","record":{"aliases":["GHSA-w9c6-w29v-4vp6"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Kubernetes multicluster engine","requires_auth":"low_privilege","summary":"A flaw in the managedcluster-import-controller allows a privileged spoke cluster service account to escalate privileges to hub cluster-admin by submitting a malicious CSR.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":9.9,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Privilege escalation in multicluster engine for Kubernetes 2.10","id":"CVE-2026-66795","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Apache CloudStack: Unauthorised comment creation and disclosure","id":"CVE-2026-66797"},"packages":[],"prev":{"headline":"Cluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluster services via public route","id":"CVE-2026-66794"},"products":["multicluster engine for Kubernetes 2.10","multicluster engine for Kubernetes 2.11","multicluster engine for Kubernetes 2.17","multicluster engine for Kubernetes 2.6","multicluster engine for Kubernetes 2.8","multicluster engine for Kubernetes 2.9"],"published":"2026-08-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["Red Hat"]},"summary":"A flaw in the managedcluster-import-controller allows a privileged spoke cluster service account to escalate privileges to hub cluster-admin by submitting a malicious CSR.","url":"https://insights.sbomify.com/CVE-2026-66795/"}