pypdf: Possible long runtimes with large amount of embedded files
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 accesse…
Severity high: primary CNA CVSS 8.7 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-09-30T20:10:38.433Z. Updated 2026-10-01T18:51:27.463Z.