CVE-2026-82864
pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-409 |
| Vendor | pdfme |
| Product | pdf-lib |
| Published | Aug 31, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
pdfme / pdf-lib
0 < 5.5.10
References
Credits
🔍 offset