CVE-2026-113793
NoneCVSS
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EPSS
0.5%
Published
Oct 21, 2026
CISA due date
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The record
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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