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VULNERABILITIES

CVE-2026-48735 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/py-pdf/pypdf/pull/3796 [email protected]Issue TrackingPatch
https://github.com/py-pdf/pypdf/releases/tag/6.12.1 [email protected]Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c [email protected]PatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-770Allocation of Resources Without Limits or Throttling[email protected]

Affected Products

ProductVersions
pypdf project pypdf
< 6.12.1

CPE

  • cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-48735
NVD Published Date:
May 28, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-48735 Details - Not Deferred