Resource Exhaustion Affecting pypdf package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.3% (24th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYPDF-21884781
  • published30 Oct 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-119206  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest pypdf.

NVD Description

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

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can take excessive time to retrieve page labels from a crafted PDF containing a flat page-label number tree with many ranges. The page_labels property resolves each page independently and repeatedly scans the same /Nums array from the beginning, causing work to grow with both the page count and the number of label ranges. This issue is fixed in version 6.21.3.

CVSS Base Scores

version 3.1