CVE-2026-48735

UNKNOWN 0.0

pypdf: Manipulated XMP metadata streams can exhaust RAM

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.1, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. This vulnerability is fixed in 6.12.1.

CWE	CWE-770
Vendor	py-pdf
Product	pypdf
Published	May 28, 2026
Last Updated	Jun 2, 2026

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Affected Versions

py-pdf / pypdf

< 6.12.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c github.com: https://github.com/py-pdf/pypdf/pull/3796 github.com: https://github.com/py-pdf/pypdf/releases/tag/6.12.1