CVE-2026-27024: pypdf has a possible infinite loop when processing TreeObject
(updated )
An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines.
References
- github.com/advisories/GHSA-996q-pr4m-cvgq
- github.com/py-pdf/pypdf
- github.com/py-pdf/pypdf/commit/bd2f6d052fe5941e85e37082c2a43453d48d1295
- github.com/py-pdf/pypdf/pull/3645
- github.com/py-pdf/pypdf/releases/tag/6.7.1
- github.com/py-pdf/pypdf/security/advisories/GHSA-996q-pr4m-cvgq
- nvd.nist.gov/vuln/detail/CVE-2026-27024
Code Behaviors & Features
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