Vulnerabilities CVE-2026-71852

CVE-2026-71852

Medium

Open

TLP:CLEAR

pypdf: Possible long runtimes/large memory usage for large CID font width ranges

NVD CVE.org

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Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/_font.py function Font._collect_cid_character_widths expands unusually large CID font /W width ranges or excessive width entries during text extraction. This issue is fixed in 6.15.0.

Details

CVSS Score: 4.8
EPSS Score ⓘ: 0.13%

2.7th percentile
CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 7, 2026
Last Modified: Aug 7, 2026

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