CVE-2026-48155

UNKNOWN 0.0

pypdf: Possible large memory usage for large offsets for layout mode text

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting text in layout mode with large character offsets. This vulnerability is fixed in 6.12.0.

CWE	CWE-400
Vendor	py-pdf
Product	pypdf
Published	May 28, 2026
Last Updated	May 28, 2026

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Affected Versions

py-pdf / pypdf

< 6.12.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/py-pdf/pypdf/security/advisories/GHSA-cj93-chg6-vgv8 github.com: https://github.com/py-pdf/pypdf/pull/3790 github.com: https://github.com/py-pdf/pypdf/releases/tag/6.12.0