{"id":"CVE-2026-127080","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-127080","summary":"OpsTree BuildPiper before 2.7.0 contains an improper authorization vulnerability that allows authenticated deploy users to define arbitrary Kubernetes hostPath volumes without allow-list…","details":"OpsTree BuildPiper before 2.7.0 contains an improper authorization vulnerability that allows authenticated deploy users to define arbitrary Kubernetes hostPath volumes without allow-list or policy checks. Attackers can set the host path to / in the Define HostPath Volume configuration to mount the worker node root filesystem read-write, breaking container isolation and enabling node and cluster compromise.","published":"2026-11-13T09:34:21.479Z","modified":"2026-11-13T09:34:21.479Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"EXPLOIT","url":"https://gist.github.com/neelkotnis/b8c1cf47f829c28086fe78d8187eb938"},{"type":"WEB","url":"https://www.buildpiper.io/"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/opstree-buildpiper-before-2.7.0-container-escape-via-unrestricted-hostpath-volumes"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-13T09:34:21.479Z"}}