CVE-2026-113792pypdf: Possible infinite loop in PdfWriter.find_outline_item

Descripción

pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, calling PdfWriter.find_outline_item on a crafted PDF with a cyclic outline hierarchy can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/py-pdf/pypdf/security/advisories/GHSA-qfv9-64jg-mh7p Vendor Advisory
• https://github.com/py-pdf/pypdf/pull/4188 Issue TrackingPatch
• https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0 Patch
• https://github.com/py-pdf/pypdf/releases/tag/6.20.1 Release Notes