CVE-2026-9084— MISP 授权问题漏洞

MISP OIDC authentication bypass via automatic email-based account linking under insecure IdP configurations

MISP’s OIDC authentication plugin allowed automatic linking of an OIDC identity to an existing local user account based on the email claim when the local account had no stored sub value. Under insecure or untrusted IdP configurations where email ownership is not enforced, an attacker with a valid OIDC token could assert a victim’s email address and authenticate as that user, leading to account takeover.

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认证机制不恰当

MISP 授权问题漏洞

MISP是MISP开源的一套开源的软件解决方案。该产品用于收集、存储、分发、共享网络安全指标，并具有威胁网络安全事件分析和恶意软件分析等功能。 MISP存在授权问题漏洞，该漏洞源于基于email声明自动链接OIDC身份时未验证邮箱所有权，可能导致攻击者通过断言受害者邮箱地址进行账户接管。

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