{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-102623 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-102623 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-102623 is a medium-severity vulnerability in Red Hat OpenShift Virtualization 4, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-102623 and fix it if it is affected.\n\nWhat it is: CVE-2026-102623 is a medium-severity vulnerability in Red Hat OpenShift Virtualization 4, published on 29 Sep 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-2026-102623 in the wild and no public exploit code.\n\nAffected product: Red Hat OpenShift Virtualization 4. 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-2026-102623/ (Markdown: https://insights.sbomify.com/CVE-2026-102623/index.md)","id":"CVE-2026-102623","markdown":"https://insights.sbomify.com/CVE-2026-102623/index.md","name":"CVE-2026-102623","record":{"aliases":["AZL-105537","GHSA-x9f5-3f6m-x9jh"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"KubeVirt virtualization","requires_auth":"low_privilege","summary":"An authenticated user can crash the KubeVirt controller by submitting a VM with an empty ephemeral volume, causing a denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"A flaw was found in KubeVirt. An authenticated user with permission to create Virtual Machine Instances (VMIs) can cause a Denial of Service (DoS) by submitting a virtual machine definition with an empty ephemeral volume. The virt-controller component fails to properly validate the volume configuration, leading to an unhandled exception and application crash during processing. Because the malformed definition persists in the cluster, the controller enters a continuous crash loop, disrupting virtual machine lifecycle operations across the entire environment.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Kubevirt: kubevirt: virt-controller nil-pointer dereference via malformed ephemeral volume","id":"CVE-2026-102623","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"LimeSurvey Community Edition 7.4.0 - Stored XSS through the Date/Time date_min question attribute","id":"CVE-2026-102626"},"packages":[],"prev":{"headline":"Freedesktop Poppler SplashClip.cc clipToPath integer overflow","id":"CVE-2026-102621"},"products":["Red Hat OpenShift Virtualization 4"],"published":"2026-09-29","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":"partial"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["Red Hat"]},"summary":"An authenticated user can crash the KubeVirt controller by submitting a VM with an empty ephemeral volume, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-102623/"}