CVE-2026-113786

UNKNOWN 0.0

pypdf: Unvalidated JPEG image data loading

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.1, an attacker can craft a PDF containing image data labeled with the /DCTDecode filter that causes Pillow to select and invoke an unintended image parser when the image is loaded. Environments without the optional Pillow dependency are not affected. This issue is fixed in version 6.21.1.

CWE	CWE-20 CWE-183
Vendor	py-pdf
Product	pypdf
Published	Oct 21, 2026

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Affected Versions

py-pdf / pypdf

< 6.21.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hx5-vpf9-5wcv github.com: https://github.com/py-pdf/pypdf/pull/4222 github.com: https://github.com/py-pdf/pypdf/commit/512d8eb94eb04be1d1c90504e6da2dcef8679e07 github.com: https://github.com/py-pdf/pypdf/releases/tag/6.21.1