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CVE-2026-33123 PUBLISHED CVSS 5.099999904632568 MEDIUM

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.1 allow an attacker to craft a malicious PDF which leads to long runtimes and/or large memory usage. Exploitation requires accessing an array-based stream with many entries. This issue has been fixed in version 6.9.1.

EPSS 0.01% · 0.7th percentile

Risk Scores

CVSS v4.0
5.099999904632568
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS Score
0.01%
0.7th percentile

Affected Products

VendorProductVersions
PyPIpypdf0, 0, 0
py-pdfpypdf< 6.9.1, < 6.9.1, *
pypdf_projectpypdf0, 0, 0

Timeline

References

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