PT-2026-56527 · Pypi · Pypdf

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CVE-2026-59937

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Published

2026-07-08

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Updated

2026-08-18

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.14.0
Description An attacker can craft a PDF containing repeated malformed cross-reference streams. This causes the library to spend excessive runtimes attempting to recover broken cross-reference table entries, leading to a denial of service through resource exhaustion.
Recommendations Update to version 6.14.0.

Exploit

Fix

Resource Exhaustion

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Weakness Enumeration

Related Identifiers

CLEANSTART-2026-EH47852
CLEANSTART-2026-GN02455
CVE-2026-59937
ECHO-827C-A5A0-D582
GHSA-55H5-XMCQ-C37V
OPENSUSE-SU-2026:11238-1
OPENSUSE-SU-2026:21589-1
PYSEC-2026-3610

Affected Products

Pypdf