---
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: 0.00207
epssPercentile: 0.09583
---

## Overview

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.

Affects 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.

Users of apache-airflow-providers-hashicorp are recommended to upgrade to version 4.8.0 or later, which fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.