CVE-2026-54359— MISP automation endpoints may be exposed to CSRF when Sec-Fetch-Site protection is disabled by default

MISP automation endpoints may be exposed to CSRF when Sec-Fetch-Site protection is disabled by default

MISP contains an insecure default configuration in which the Security.check_sec_fetch_site_header control is disabled. When this setting is disabled, state-changing requests such as POST, PUT, or AJAX requests are not restricted based on the browser-provided Sec-Fetch-Site header. A remote unauthenticated attacker could craft a malicious web page that causes an authenticated MISP user’s browser to issue cross-site requests to MISP automation endpoints. If successful, the forged requests may be processed with the privileges of the victim user, potentially allowing unauthorized modification of MISP data or configuration. Enabling Security.check_sec_fetch_site_header mitigates this issue, although operators of multi-homed MISP deployments should validate the setting before enforcing it.

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跨站请求伪造(CSRF)

MISP 配置错误漏洞

MISP是MISP组织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 2.5.40之前版本存在安全漏洞，该漏洞源于安全配置中Security.check_sec_fetch_site_header控制被禁用，可能导致状态更改请求未基于浏览器提供的Sec-Fetch-Site标头进行限制，远程未经身份验证的攻击者可能制作恶意网页，造成经过身份验证的MISP用户的浏览器向MISP自动化端点发出跨站请求。

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