NVD HIGH: CVE-2026-102999 — pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a craf...

Wednesday, September 30, 2026 at 09:17 PM UTC·Source: NIST NVD

Updated: Monday, October 5, 2026 at 04:00 PM UTC

Executive Summary

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.

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2026-102999

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Sep 30, 2026. Verified by: NIST.

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