Allocation of Resources Without Limits or Throttling Affecting pypdf package, versions [,6.12.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-PYTHON-PYPDF-17054918
  • published29 May 2026
  • disclosed28 May 2026
  • creditmanop55555

Introduced: 28 May 2026

NewCVE-2026-48735  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade pypdf to version 6.12.1 or higher.

Overview

pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the parsing process. An attacker can cause excessive memory consumption by providing a PDF file containing a large and complex XMP metadata stream.

CVSS Base Scores

version 4.0
version 3.1