CVE-2026-91819

Affected versions of MISP rely on CakePHP request-method override processing in a way that can disable CSRF and form-security validation. CakePHP honors a _method field or X-HTTP-Method-Override header by rewriting the effective request method. For override values outside the normal write verbs POST, PUT, PATCH, and DELETE, CakePHP also clears the parsed request body. MISP’s security component then determines whether to perform _validatePost() and _validateCsrf() based on whether request data remains. With a value such as: _method=GET the body becomes empty before those checks run, so both protections are skipped. A cross-site form containing only that override can therefore reach actions whose parameters are taken from the URL rather than the request body Version affected: ≤2.5.45

CVSS

No CVSS.

References

Link	Resource
https://github.com/MISP/MISP/commit/29af008c4

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 08:17

Updated : 2026-09-15 15:17

NVD link : CVE-2026-91819

Mitre link : CVE-2026-91819

CVE.ORG link : CVE-2026-91819

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-352

Cross-Site Request Forgery (CSRF)

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