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.
Metrics
Affected Vendors & Products
References
History
Fri, 12 Jun 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Misp
Misp misp |
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| Vendors & Products |
Misp
Misp misp |
Fri, 12 Jun 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | MISP automation endpoints may be exposed to CSRF when Sec-Fetch-Site protection is disabled by default | |
| Weaknesses | CWE-1188 CWE-352 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: CIRCL
Published:
Updated: 2026-06-12T19:44:24.549Z
Reserved: 2026-06-12T19:44:13.149Z
Link: CVE-2026-54359
No data.
Status : Received
Published: 2026-06-12T20:16:47.843
Modified: 2026-06-12T20:16:47.843
Link: CVE-2026-54359
No data.
OpenCVE Enrichment
Updated: 2026-06-12T21:30:07Z