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CVE-2026-48155

5.5 MEDIUM

pypdf is a free and open-source pure-python PDF library

Published: 2026-05-28 · Last updated: 2026-05-29

Severity and scoring

CVSS
5.5 MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
CWE-400

Affected products

VendorProduct
pypdf_projectpypdf

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting text in layout mode with large character offsets. This vulnerability is fixed in 6.12.0.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-48735 — pypdf is a free and open-source pure-python PDF library (5.5 MEDIUM)
  • CVE-2026-48156 — pypdf is a free and open-source pure-python PDF library (3.3 LOW)

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