CVE-2026-48735

Updated on 28 May 2026

Severity

6.9 Medium severity

Details

CVSS score
6.9
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Overview

About vulnerability

Impact

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.

Patches

This has been fixed in [pypdf==6.12.1](https://github.com/py-pdf/pypdf/releases/tag/6.12.1).

Workarounds

If you cannot upgrade yet, consider applying the changes from PR [#3796](https://github.com/py-pdf/pypdf/pull/3796).

Details

Affected product:
pypdf
Affected packages:
pypdf @ 5.9.0

Fixes