{"items":[{"id":"NVI-00020087","kind":"vulnerability","title":"Kata Container has CopyFile Policy Subversion via Symlinks","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q49m-57vm-c8cc","CVE-2026-41326"],"plain_summary":"GitHub lists this reviewed advisory for github.com/kata-containers/kata-containers. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-749c3643750cd129227bf380a6434393"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-05-14T20:49:52.000Z","value":"8.2 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-749c3643750cd129227bf380a6434393"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-749c3643750cd129227bf380a6434393","url":"https://github.com/advisories/GHSA-q49m-57vm-c8cc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q49m-57vm-c8cc","publisher":"GitHub Advisory Database","observed_at":"2026-11-08T01:47:24.790Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-749c3643750cd129227bf380a6434393"],"technology":"github.com/kata-containers/kata-containers","known_exclusions":[],"conditions_summary":"### Summary\nAn oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs.\n\n### Details\nHere is the policy that covers CopyFile requests.\n```\nCopyFileRequest if {\n    print(\"CopyFileRequest: input.path =\", input.path)\n        \n    check_directory_traversal(input.path)\n        \n    some regex1 in policy_data.request_defaults.CopyFileRequest\n    regex2 := replace(regex1, \"$(sfprefix)\", policy_data.common.sfprefix)\n    regex3 := replace(regex2, \"$(cpath)\", policy_data.common.cpath)\n    regex4 := replace(regex3, \"$(bundle-id)\", \"[a-z0-9]{64}\")\n    print(\"CopyFileRequest: regex4 =\", regex4)\n    \n    regex.match(regex4, input.path)\n      \n    print(\"CopyFileRequest: true\")\n}\n```\nThis checks that files are being copied to `policy_data.common.cpath`, which is typically set to `/run/kata-containers/shared/containers`. In other words, you're allowed to copy files to anywhere inside the shared dir.\n\nFor reference, here is the CopyFile message. Note that none of the other fiel","public_affected_ranges":["< 0.0.0-20260422180503-1b9e49eb2763"]}],"null_published_at":"2026-11-08T15:11:49.346Z","source_updated_at":"2026-05-14T20:49:52.000Z","source_disclosed_at":"2026-05-04T19:32:20.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-08T01:47:24.790Z"}],"next_cursor":null,"snapshot_revision":"42594"}