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CVE-2026-27026

MEDIUM

5.5

Descripcion

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 long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.

Detalles CVE

Puntuacion CVSS v3.15.5

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado2/20/2026

Ultima modificacion2/24/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

pypdf_project:pypdf

Debilidades (CWE)

CWE-770

Referencias

https://github.com/py-pdf/pypdf/commit/7905842d833f899f1d3228af7e7467ad80277016(security-advisories@github.com)

https://github.com/py-pdf/pypdf/pull/3644(security-advisories@github.com)

https://github.com/py-pdf/pypdf/releases/tag/6.7.1(security-advisories@github.com)

https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mvc-8737-8j8h(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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