{"answers":{"affected":"3 open source packages ship an affected version, including kubevirt.io/kubevirt.","exploited":"There is no known exploitation of CVE-2026-6383 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-6383 is a medium-severity missing authorization vulnerability in Red Hat OpenShift Virtualization 4, published on 15 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-6383 and fix it if it is affected.\n\nWhat it is: CVE-2026-6383 is a medium-severity missing authorization vulnerability in Red Hat OpenShift Virtualization 4, published on 15 Apr 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-2026-6383 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- kubevirt.io/kubevirt (Go): affected all versions; no fix listed\n- kubevirt.io/kubevirt (Go): affected all versions up to 1.8.1; no fix listed\n- kubevirt.io/kubevirt (Go): affected all versions up to 1.8.1; no fix listed\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-2026-6383/ (Markdown: https://insights.sbomify.com/CVE-2026-6383/index.md)","id":"CVE-2026-6383","markdown":"https://insights.sbomify.com/CVE-2026-6383/index.md","name":"CVE-2026-6383","record":{"aliases":["AZL-86025","GHSA-j6cv-3w8p-vrg8","GO-2026-5450","MINI-m39g-7cfg-vjj2","MINI-vm2m-q958-x3pv"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"KubeVirt virtualization","requires_auth":"low_privilege","summary":"Authenticated users can bypass RBAC restrictions to access unauthorized subresources, potentially disclosing sensitive information or performing prohibited actions.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"A flaw was found in KubeVirt's Role-Based Access Control (RBAC) evaluation logic. The authorization mechanism improperly truncates subresource names, leading to incorrect permission evaluations. This allows authenticated users with specific custom roles to gain unauthorized access to subresources, potentially disclosing sensitive information or performing actions they are not permitted to do. Additionally, legitimate users may be denied access to resources.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Kubevirt: kubevirt: unauthorized subresource access due to improper rbac evaluation","id":"CVE-2026-6383","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Gimp: gimp: arbitrary code execution or denial of service via buffer overflow in gif image processing","id":"CVE-2026-6384"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"kubevirt.io/kubevirt","purl":"pkg:golang/kubevirt.io/kubevirt","source":"GO-2026-5450"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.8.1"],"package":"kubevirt.io/kubevirt","purl":null,"source":"GHSA-j6cv-3w8p-vrg8"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.8.1"],"package":"kubevirt.io/kubevirt","purl":"pkg:golang/kubevirt.io/kubevirt","source":"GHSA-j6cv-3w8p-vrg8"}],"prev":{"headline":"Multiple elFinder Plugins - Authenticated OS Command Injection","id":"CVE-2026-6382"},"products":["Red Hat OpenShift Virtualization 4"],"published":"2026-04-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-04-15","vendors":["Red Hat"]},"summary":"Authenticated users can bypass RBAC restrictions to access unauthorized subresources, potentially disclosing sensitive information or performing prohibited actions.","url":"https://insights.sbomify.com/CVE-2026-6383/"}