CVE-2026-84309Medium· 5.5▾ Sunlitpypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/_data_structures.py TreeObject.insert_child to follow /Next links indefinitely when a …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.1%
— → 5.5
Last analysed / modified upstream
0.1% → 0.2%
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/_data_structures.py TreeObject.insert_child to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop. This issue is fixed in version 6.16.0.
pypdf < 6.16.0Upgrade past the affected range:
pypdf 6.16.0Affected packages:
pypdf < 6.16.0Patched in:
pypdf 6.16.0Source: https://github.com/advisories/GHSA-jp53-mhqp-8xcg
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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