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Advisories

pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb

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severity
high
date
Affecting

  • pdf-lib >= 0, < 5.5.10

CWE
  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
offset
Description
pdfme pdf-lib versions before 5.5.10 contain an unbounded buffer growth vulnerability in the DecodeStream.ensureBuffer() method that allows attackers to cause denial of service by supplying a crafted PDF with a FlateDecode stream containing a decompression bomb. Attackers can upload a small compressed PDF that decompresses to hundreds of megabytes, exhausting memory and crashing the Node.js process or freezing browser tabs during PDF parsing.

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