Medium severity6.5NVD Advisory· Published Aug 31, 2026

CVE-2026-82864

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Pdfme/Pdfmellm-fuzzy
Range: <5.5.10

Patches

Vulnerability mechanics

References

github.com/pdfme/pdfme/security/advisories/GHSA-vrqm-gvq7-rrwhnvd
www.vulncheck.com/advisories/pdfme-pdf-lib-before-5.5.10-denial-of-service-via-decompression-bombnvd

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000