Setasign FPDI CVE-2026-45802
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2DescriptionNVD
Impact
This is a significant Denial of Service (DoS) vulnerability. Any application that uses FPDI to process user-supplied PDF files is at risk. An attacker can upload a small, malicious PDF file that will cause the server-side script to crash due to memory exhaustion or a script time-out. Repeated attacks can lead to sustained service unavailability.
Patches
Fixed as of version 2.6.7
Workarounds
No.
References
No.
AnalysisAI
Memory exhaustion and endless loop in Setasign FPDI (composer package setasign/fpdi) allow remote attackers to crash PHP server-side scripts by uploading a small, specially crafted PDF file. All versions prior to 2.6.7 are affected, and any web application that exposes FPDI-based PDF processing to user-supplied input is vulnerable. …
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External POC / Exploit Code
Leaving vuln.today
GHSA-2mgw-7q6p-8grg