CVE-2026-27024

pypdf has a possible infinite loop when processing TreeObject

CVSS 6.9 MEDIUMEPSS 0.2%CWE-835

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, 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. This vulnerability is fixed in 6.7.1.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Produtos afetados

py-pdf · pypdf

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Referências

https://github.com/py-pdf/pypdf/commit/bd2f6d052fe5941e85e37082c2a43453d48d1295 https://github.com/py-pdf/pypdf/pull/3645 https://github.com/py-pdf/pypdf/releases/tag/6.7.1 https://github.com/py-pdf/pypdf/security/advisories/GHSA-996q-pr4m-cvgq