PT-2026-132827

CVE-2026-119205

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Published

2026-10-29

·

Updated

2026-10-29

Description by

CVSS 4.0
7.1
High
MetricsAV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.4, pypdf can enter an infinite loop when cloning or duplicating a crafted cyclic DictionaryObject. Clone traversal checked generated destination references rather than the original source references, allowing some source cycles to evade the visited-object check. This issue is fixed in version 6.21.4.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-835: Loop with Unreachable Exit Condition (\'Infinite Loop\')
Related identifiers
CVE-2026-119205
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