CVE-2026-102999

UNKNOWN 0.0

pypdf: Possible long runtimes with large amount of embedded files

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-400 CWE-407
Vendor	py-pdf
Product	pypdf
Published	Sep 30, 2026

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Affected Versions

py-pdf / pypdf

< 6.19.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/py-pdf/pypdf/security/advisories/GHSA-v247-6f48-mgcj github.com: https://github.com/py-pdf/pypdf/pull/4081 github.com: https://github.com/py-pdf/pypdf/commit/6b10556d13609a68f9ed18bb29fdd8bba88eb2c3 github.com: https://github.com/py-pdf/pypdf/releases/tag/6.19.0