pdfme pdf-lib before 5.5.10 Denial of Service via Decompression Bomb
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.
CVE-2026-82864
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-82864
pdf-lib
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "pdfme",
"product": "pdf-lib",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "5.5.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.5.10",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/%40pdfme/pdf-lib",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-82864
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12927 · Revision 1
- Added to Heist Feed
- Publisher date