Bug 2544307 (CVE-2026-102999) - CVE-2026-102999 pypdf: pypdf: Denial of Service via crafted PDF with numerous embedded files
Summary: CVE-2026-102999 pypdf: pypdf: Denial of Service via crafted PDF with numerous...
Keywords:
Status: NEW
Alias: CVE-2026-102999
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-30 20:35 UTC by OSIDB Bzimport
Modified: 2026-10-01 18:05 UTC (History)
24 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-30 20:35:02 UTC 
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF containing many embedded files can cause the dictionary-based attachments API in pypdf/_doc_common.py to reparse the full attachment list for each content lookup, producing repeated work and long runtimes when an application accesses the embedded-file mapping. This issue is fixed in version 6.19.0.
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