Resource Exhaustion Affecting pypdf2 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.27% (20th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYPDF2-21884772
  • published30 Oct 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-119209  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest pypdf2.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pypdf2 package and not the pypdf2 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 consume excessive memory while opening a crafted PDF containing cross-reference streams that declare very large entry counts. Highly compressible streams and /Prev chains can multiply the number of parsed entries across a document, while negative /Index counts can bypass the existing per-stream clamp. This issue is fixed in version 6.21.3.

CVSS Base Scores

version 3.1