{"vulnerability": "CVE-2026-74939", "sightings": [{"uuid": "cefd0f13-70af-4878-8f97-041ba8fbc440", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-74939", "type": "seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mtj2gydc5j2y", "content": "\ud83d\udccc CVE-2026-74939 - Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ES... https://www.cyberhub.blog/cves/CVE-2026-74939", "creation_timestamp": "2026-08-20T10:37:06.701745Z"}, {"uuid": "19384681-f4d3-45eb-a7f5-e7576cdb09e9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-74939", "type": "seen", "source": "https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20260819", "content": "", "creation_timestamp": "2026-08-19T04:45:19.140738Z"}, {"uuid": "9c26dd82-e6c4-48c6-9d20-0f12b4cd4119", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-74939", "type": "published-proof-of-concept", "source": "Telegram/MFt61SkAsLaprfOBakMO1eyKaH6ILKietM4XZZBHzMsRjGI", "content": "", "creation_timestamp": "2026-08-26T00:00:10.494299Z"}, {"uuid": "3b91e9b9-abc3-4709-935f-216b0f29b423", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-74939", "type": "published-proof-of-concept", "source": "Telegram/MFt61SkAsLaprfOBakMO1eyKaH6ILKietM4XZZBHzMsRjGI", "content": "", "creation_timestamp": "2026-08-25T11:00:03.087727Z"}]}