What is GHSA-wjqc-6w8f-h24c?

GHSA-wjqc-6w8f-h24c is a security advisory published by GitHub Security Advisories with Medium severity. pypdf: Manipulated XMP metadata streams can exhaust RAM

Which CVE IDs does GHSA-wjqc-6w8f-h24c cover?

GHSA-wjqc-6w8f-h24c covers the following CVE IDs: CVE-2026-48735. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-wjqc-6w8f-h24c?

GHSA-wjqc-6w8f-h24c affects 1 product, including: pip/pypdf:\u003c 6.12.1.

GHSA-wjqc-6w8f-h24cMedium

pypdf: Manipulated XMP metadata streams can exhaust RAM

Vendor

GitHub Security Advisories

Published

June 16, 2026

Last Modified

June 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-48735 →

📋 Description

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.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3796.

🎯 Affected products1

pip/pypdf:< 6.12.1

🔗 References (5)

https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c
https://nvd.nist.gov/vuln/detail/CVE-2026-48735
https://github.com/py-pdf/pypdf/pull/3796
https://github.com/py-pdf/pypdf/releases/tag/6.12.1
https://github.com/advisories/GHSA-wjqc-6w8f-h24c