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CVE-2026-28351 PUBLISHED CVSS 6.900000095367432 MEDIUM

pypdf is a free and open-source pure-python PDF library. Prior to version 6.7.4, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream using the RunLengthDecode filter. This has been fixed in pypdf 6.7.4. As a workaround, consider applying the changes from PR #3664.

EPSS 0.02% · 3.9th percentile

Risk Scores

CVSS v4.0
6.900000095367432
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS Score
0.02%
3.9th percentile

Affected Products

VendorProductVersions
py-pdfpypdf< 6.7.4, < 6.7.4, < 6.7.4
pypdf_projectpypdf0, 0, 0
PyPIpypdf0, 0, 0

Timeline

References

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