{"schema_version": "1.6.1", "id": "CVE-2026-97636", "summary": "HashiCorp Vault secrets backend: team-scope guard bypass via user-controlled key", "details": "Apache Airflow HashiCorp provider: the HashiCorp Vault secrets backend's team-scope guard can be bypassed with a user-controlled key. In a multi-team deployment, a Dag author scoped to one team can supply a Variable key containing a path separator that causes the backend to resolve a secret belonging to a different team, because after the team-scoped lookup misses the backend falls back to a team-agnostic path concatenated from the unvalidated key. The Execution API Variables route accepts a path-shaped key, so this is reachable from ordinary Dag code.\n\nAffects multi-team deployments using the HashiCorp Vault secrets backend. Single-team deployments are not affected, as there is no cross-team boundary to cross. This is the same class as CVE-2026-86465, CVE-2026-68870, CVE-2026-68871 and CVE-2026-68872 in the Akeyless, Azure Key Vault, Yandex Lockbox and Amazon secrets backends.\n\nUsers of apache-airflow-providers-hashicorp are recommended to upgrade to version 4.8.0 or later, which fixes the issue.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "4.6.0"}, {"fixed": "4.8.0"}]}]}], "references": [{"type": "WEB", "url": "https://github.com/apache/airflow/pull/70006"}, {"type": "WEB", "url": "https://lists.apache.org/thread/l0fogo9dh5v07vnsxnhoh3c74othkr51"}, {"type": "WEB", "url": "https://www.cve.org/CVERecord?id=CVE-2026-68870"}, {"type": "WEB", "url": "https://www.cve.org/CVERecord?id=CVE-2026-68871"}, {"type": "WEB", "url": "https://www.cve.org/CVERecord?id=CVE-2026-68872"}, {"type": "WEB", "url": "https://www.cve.org/CVERecord?id=CVE-2026-86465"}]}