{"schema":"threatline.record/2","record":{"id":"CVE-2026-88838","aliases":[],"summary":"Busybox: busybox: non-root mount option filter bypass allows clearing fstab security restrictions","details":"A flaw was found in BusyBox's mount utility. A non-root user can bypass mount security restrictions set in /etc/fstab by specifying clearing-mask options on the command line. These options pass the non-root flag filter and are merged with fstab options as strings; when the combined options are re-parsed, clearing options can override nosuid, nodev, and noexec protections the administrator intended to enforce.","categories":["Operating systems"],"product":"Red Hat Hardened Images","vendor":"Red Hat","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-88838","source_modified_at":"2026-10-14T16:16:14.045Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":5.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00113,"percentile":0.01363,"score_date":"2026-10-23"},"published_at":"2026-10-13T16:56:15.518Z","modified_at":"2026-10-14T16:16:14.045Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-88838","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T16:16:14.045Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-88838","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-88838","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531352","tags":["issue-tracking","x_refsource_REDHAT"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T16:09:48.357357Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-14T16:16:14.045Z","content_hash":"0115a7b1f219eec73c3420061572799e2ffabc57384d4593b02fcd3da9a7cb89"}}