CVE-2026-40260

pypdf: Manipulated XMP metadata entity declarations can exhaust RAM

CVSS 6.9 MEDIUMEPSS 0.4%CWE-776

pypdf is a free and open-source pure-python PDF library. In versions prior to 6.10.0, manipulated XMP metadata entity declarations can exhaust RAM. An attacker who exploits this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the XMP metadata. This issue has been fixed in version 6.10.0.

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

Produtos afetados

py-pdf · pypdf

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Referências

https://github.com/py-pdf/pypdf/commit/b15a374e5ca648d4878e57c3b2c0551e7f8cc7f8 https://github.com/py-pdf/pypdf/pull/3724 https://github.com/py-pdf/pypdf/releases/tag/6.10.0 https://github.com/py-pdf/pypdf/security/advisories/GHSA-3crg-w4f6-42mx