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CVE-2026-48735

pypdf: Manipulated XMP metadata streams can exhaust RAM

CVSS 6.9 MEDIUMEPSS 0.1%CWE-770
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.1, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. This vulnerability is fixed in 6.12.1.
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
Productos afectados
py-pdf · pypdf

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Referencias
https://github.com/py-pdf/pypdf/pull/3796https://github.com/py-pdf/pypdf/releases/tag/6.12.1https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c