{"id":"CVE-2026-97636","title":"Apache Airflow HashiCorp provider: the HashiCorp Vault secrets backend's team-scope guard can be bypassed with a user-controlled key","summary":"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…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-639"],"vendor":"Apache Software Foundation","product":"apache-airflow-providers-hashicorp","affected":["apache-airflow-providers-hashicorp >= 4.6.0 < 4.8.0"],"published":"2026-09-24","updated":"2026-09-25","sourceUpdated":"2026-09-25T17:17:21.137","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97636","references":[{"url":"https://github.com/apache/airflow/pull/70006","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/l0fogo9dh5v07vnsxnhoh3c74othkr51","label":"security@apache.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68870","label":"security@apache.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68871","label":"security@apache.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68872","label":"security@apache.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86465","label":"security@apache.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-25T16:37:39.918441Z"},"ingestedAt":"2026-09-24T22:54:36.881Z","epss":0.00374,"epssPercentile":0.31195,"slug":"CVE-2026-97636","body":"## Overview\n\nApache 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":211077,"id":"CVE-2026-97636","ts":1790356442983,"field":"cvss","old":null,"new":"6.5"},{"seq":211076,"id":"CVE-2026-97636","ts":1790356442983,"field":"severity","old":"none","new":"medium"}]}