{"id":"CVE-2026-97636","state":"PUBLISHED","title":"Apache Airflow HashiCorp provider: HashiCorp Vault secrets backend: team-scope guard bypass via user-controlled key","description":"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.","publishedAt":"2026-09-24T21:54:58.005Z","updatedAt":"2026-09-25T16:38:16.529Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Airflow HashiCorp provider"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Airflow HashiCorp provider","packageName":"apache-airflow-providers-hashicorp","packageURL":"pkg:pypi/apache-airflow-providers-hashicorp","defaultStatus":"unaffected","versions":[{"version":"4.6.0","status":"affected","lessThan":"4.8.0","versionType":"semver"}],"collectionURL":"https://pypi.python.org"}],"references":["https://github.com/apache/airflow/pull/70006","https://lists.apache.org/thread/l0fogo9dh5v07vnsxnhoh3c74othkr51","https://www.cve.org/CVERecord?id=CVE-2026-68870","https://www.cve.org/CVERecord?id=CVE-2026-68871","https://www.cve.org/CVERecord?id=CVE-2026-68872","https://www.cve.org/CVERecord?id=CVE-2026-86465"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97636.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97636","state":"PUBLISHED","datePublished":"2026-09-24T21:54:58.005Z","dateUpdated":"2026-09-25T16:38:16.529Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-09-24T17:21:06.038Z"},"containers":{"cna":{"title":"Apache Airflow HashiCorp provider: HashiCorp Vault secrets backend: team-scope guard bypass via user-controlled key","descriptions":[{"lang":"en","value":"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":[{"vendor":"Apache Software Foundation","product":"Apache Airflow HashiCorp provider","packageName":"apache-airflow-providers-hashicorp","packageURL":"pkg:pypi/apache-airflow-providers-hashicorp","defaultStatus":"unaffected","versions":[{"version":"4.6.0","status":"affected","lessThan":"4.8.0","versionType":"semver"}],"collectionURL":"https://pypi.python.org"}],"references":[{"url":"https://github.com/apache/airflow/pull/70006","tags":["patch"]},{"url":"https://lists.apache.org/thread/l0fogo9dh5v07vnsxnhoh3c74othkr51","tags":["vendor-advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68870","tags":["related"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68871","tags":["related"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68872","tags":["related"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86465","tags":["related"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"moderate"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-09-24T21:54:58.005Z"},"source":{"discovery":"UNKNOWN"},"credits":[{"lang":"en","value":"ReturnZero","type":"finder"},{"lang":"en","value":"Bas Harenslak","type":"remediation developer"}],"x_generator":{"engine":"airflow-s/generate_cve_json.py"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-25T16:37:39.918441Z","id":"CVE-2026-97636","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-25T16:38:16.529Z"}}]}}}