{"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"}]}