PT-2026-120661 · Py Pdf · Pypdf

CVE-2026-113790

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Published

2026-10-21

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Updated

2026-10-21

CVSS v4.0

6.0

Medium

VectorAV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.

Fix

Resource Exhaustion

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

CVE-2026-113790

Affected Products

Pypdf