CVE 6.6 MEDIUM

pypdf manipulated LZWDecode streams can exhaust RAM_CVE-2025-62708

6.6 / 10
MEDIUM
CVSS: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

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.

Basic Information

ID CVE-2025-62708
Source GitHub_M
Published Oct 22, 2025 at 21:36

Affected Product

Vendor py-pdf
Product pypdf
Version < 6.1.3
Affected Versions py-pdf pypdf < 6.1.3

CWE Classification

References

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