{"vulnerability": "CVE-2026-34084", "sightings": [{"uuid": "d2ec5ca8-4968-42d7-b0a4-613fc177fb27", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-34084", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/3ml526ebzri2k", "content": "CVE-2026-34084 - PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load\nCVE ID : CVE-2026-34084\n \n Published : May 5, 2026, 7:22 p.m. | 59\u00a0minutes ago\n \n Description : PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.2 and...", "creation_timestamp": "2026-05-05T20:38:47.507871Z"}, {"uuid": "49708ddd-06d8-4015-abb7-0da1e8c12cd6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-34084", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/116525041581261586", "content": "\ud83d\udea8 PHPOffice PhpSpreadsheet CRITICAL vuln (CVE-2026-34084): RCE & SSRF possible via user input to IOFactory::load() (phar://, ftp://, ssh2.sftp://). Affected: v1.x \u2013 5.5.0. Upgrade to a fixed version now! https://radar.offseq.com/threat/cve-2026-34084-cwe-502-deserialization-of-untruste-a9be2322 #OffSeq #CVE202634084 #infosec #php", "creation_timestamp": "2026-05-06T01:30:30.968345Z"}, {"uuid": "389abff9-5384-4d78-b501-2d8c8be074f8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-34084", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3ml5ki2imsk2y", "content": "\u26a0\ufe0f CRITICAL: PhpSpreadsheet allows RCE & SSRF via unsafe deserialization (CVE-2026-34084) if IOFactory::load() uses user input. Affected: v1.x \u2013 5.5.0. Upgrade ASAP! https://radar.offseq.com/threat/cve-2026-34084-cwe-502-deserialization-of-untruste-a9be2322 #OffSeq #Vulnerability #CVE202634084", "creation_timestamp": "2026-05-06T01:30:33.034728Z"}, {"uuid": "9ebc95be-3b01-4e81-a747-9498c7705206", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-34084", "type": "published-proof-of-concept", "source": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-q4q6-r8wh-5cgh", "content": "", "creation_timestamp": "2026-04-28T23:47:52.000000Z"}, {"uuid": "03ad3419-36cc-4951-a6bc-4372576c40b8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-34084", "type": "seen", "source": "https://bsky.app/profile/euvd-bot.bsky.social/post/3movv43kuif2q", "content": "\ud83d\udea8 EUVD-2026-38359\n\ud83d\udcca 9.2/10\n\ud83c\udfe2 PHPOffice\n\n\ud83d\udcdd PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.5, CVE-2026-34084 was patched by the helper File::prohibit...\n\n\ud83d\udd17 https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38359\n\n#cybersecurity #infosec #cve #euvd", "creation_timestamp": "2026-06-22T22:00:10.434166Z"}, {"uuid": "4074c095-8634-4366-9043-7ac9f30f1318", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-34084", "type": "seen", "source": "https://t.me/bdufstecru/3243", "content": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0439 File::prohibitWrappers() \u0438 IOFactory::load() PHP-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 PhpSpreadsheet \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u0430\u043c\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0434\u0435\u0441\u0435\u0440\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430 filename. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c SSRF-\u0430\u0442\u0430\u043a\u0443 \u0438\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434\n\nBDU:2026-08159\nCVE-2026-34084\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-q4q6-r8wh-5cgh", "creation_timestamp": "2026-07-14T01:00:06.421683Z"}]}