{"vulnerability": "cve-2026-84121", "sightings": [{"uuid": "53146841-341f-42ba-9b92-d9ffcf1373d3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-84121", "type": "seen", "source": "https://bsky.app/profile/stemshop.bsky.social/post/3muhsjgnirh2d", "content": "\ud83d\udea8 CVE-2026-84121 \u2014 CVSS 9.6 CRITICAL\n\nSandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefo...\n\n\ud83d\udd0e https://stemshop.top/cve/CVE-2026-84121\n\n#CVE #CyberSecurity #InfoSec", "creation_timestamp": "2026-09-01T16:07:50.327783Z"}, {"uuid": "a80d39f1-f782-4d48-bad2-28efd8687153", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-84121", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3muhsnh3o522w", "content": "CVE-2026-84121 - firefox\nVersions of Firefox before the latest updates could be tricked by a crafted web page to break out of its confined area, allowing the page to run code on your computer. This could let\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#firefox #mozilla #CVE #infosec", "creation_timestamp": "2026-09-01T16:10:05.007778Z"}, {"uuid": "4079e71e-6776-436c-934c-701c9cb9250b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-84121", "type": "seen", "source": "https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20260902", "content": "", "creation_timestamp": "2026-09-02T04:48:45.358585Z"}]}