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CVE-2026-97636

Apache Airflow HashiCorp provider: HashiCorp Vault secrets backend: team-scope guard bypass via user-controlled key

MEDIUM
6.5
CVSS Score
Published: September 24, 2026 at 09:54 PM UTC
Updated: September 25, 2026 at 05:37 PM UTC
1 product affected across 1 vendorApache Airflow Providers Hashicorp

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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. 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Apache Airflow Providers Hashicorp· Apachepypi
60%
4.6.0 ≤ v < 4.8.04.6.0
Affected range stops below 4.8.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (6)

Patch
Source: cverecord
https://github.com/apache/airflow/pull/70006
Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/l0fogo9dh5v07vnsxnhoh3c74othkr51
Related
Source: cverecord
https://www.cve.org/CVERecord?id=CVE-2026-68870
Related
Source: cverecord
https://www.cve.org/CVERecord?id=CVE-2026-68871
Related
Source: cverecord
https://www.cve.org/CVERecord?id=CVE-2026-68872
Related
Source: cverecord
https://www.cve.org/CVERecord?id=CVE-2026-86465

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-639

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