Asymmetric Resource Consumption (Amplification) Affecting pypdf package, versions <6.19.0-1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN14-PYPDF-19500585
  • published2 Sept 2026
  • disclosed1 Sept 2026

Introduced: 1 Sep 2026

CVE-2026-84310  (opens in a new tab)
CWE-405  (opens in a new tab)
CWE-834  (opens in a new tab)

How to fix?

Upgrade Debian:14 pypdf to version 6.19.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pypdf package and not the pypdf package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.

CVSS Base Scores

version 3.1