{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-12304/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-16T18:55:05.212Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-12304","@id":"https://www.cve.org/CVERecord?id=CVE-2026-12304","description":"Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."},"products":[{"@id":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*"}},{"@id":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 140.12, 152.","timestamp":"2026-06-16T18:55:05.212Z"}]}