Bug 2512615 (CVE-2026-71852) - CVE-2026-71852 pypdf: pypdf: Denial of Service via crafted PDF with large CID font width ranges
Summary: CVE-2026-71852 pypdf: pypdf: Denial of Service via crafted PDF with large CID...
Keywords:
Status: NEW
Alias: CVE-2026-71852
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2512855 2512854
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-07 19:21 UTC by OSIDB Bzimport
Modified: 2026-08-15 08:27 UTC (History)
22 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-07 19:21:37 UTC 
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.
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