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Description

pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream of a page using the LZWDecode filter. This has been fixed in pypdf version 6.1.3.

PUBLISHED Reserved 2025-10-20 | Published 2025-10-22 | Updated 2025-10-22 | Assigner GitHub_M




MEDIUM: 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

Problem types

CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

Product status

< 6.1.3
affected

References

github.com/.../pypdf/security/advisories/GHSA-jfx9-29x2-rv3j

github.com/py-pdf/pypdf/pull/3502

github.com/...ommit/e51d07807ffcdaf18077b9486dadb3dc05b368da

github.com/py-pdf/pypdf/releases/tag/6.1.3

cve.org (CVE-2025-62708)

nvd.nist.gov (CVE-2025-62708)

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