{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-54359/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-15T18:19:06.587Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-54359","@id":"https://www.cve.org/CVERecord?id=CVE-2026-54359","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 p"},"products":[{"@id":"cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 2.5.40.","timestamp":"2026-06-15T18:19:06.587Z"}]}