漏洞信息
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Vulnerability Title
Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass
Vulnerability Description
Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD `id_token`s during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's **multi-tenant** JWKS endpoint, an `id_token` minted in *any* Azure tenant — including one the attacker creates — passes signature verification, and the username and role assignments are then read from that attacker-controlled token. Anyone able to register an Azure tenant can therefore authenticate to the Airflow UI with no prior access to the deployment.
The fix for **CVE-2026-59243** was incomplete, and this advisory closes the remaining gap: that fix made the provider verify the `id_token` signature, but did not add issuer or audience checks. Operators who already applied the CVE-2026-59243 fix are **still affected and must upgrade again** — 3.7.3 is the release that shipped that fix, so every version containing it falls inside this affected range. Upgrade to apache-airflow-providers-fab `3.8.1` or later.
CVSS Information
N/A
Vulnerability Type
源验证错误
Vulnerability Title
Apache Airflow 输入验证错误漏洞
Vulnerability Description
Apache Airflow是美国Apache基金会开源的一套具有创建、管理和监控工作流程功能的开源平台。 Apache Airflow 3.7.3版本至3.8.0版本存在输入验证错误漏洞,该漏洞源于在OAuth登录期间未验证Azure AD id_token的发行方和受众,导致攻击者可通过注册Azure租户伪造令牌,无需先前访问即可认证到Airflow UI,可能造成未授权访问。
CVSS Information
N/A
Vulnerability Type
N/A