{"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"}