What is GHSA-52x6-gq3r-vpf4?

GHSA-52x6-gq3r-vpf4 is a security advisory published by GitHub Security Advisories with Medium severity. pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction

Which CVE IDs does GHSA-52x6-gq3r-vpf4 cover?

GHSA-52x6-gq3r-vpf4 covers the following CVE IDs: CVE-2026-54530. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-52x6-gq3r-vpf4?

GHSA-52x6-gq3r-vpf4 affects 1 product, including: pip/pypdf:\u003c 6.13.0.

GHSA-52x6-gq3r-vpf4Medium

pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction

Vendor

GitHub Security Advisories

Published

June 16, 2026

Last Modified

June 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-54530 →

📋 Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode.

Patches

This has been fixed in pypdf==6.13.0.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3830.

🎯 Affected products1

pip/pypdf:< 6.13.0

🔗 References (4)

https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4
https://github.com/py-pdf/pypdf/pull/3830
https://github.com/py-pdf/pypdf/releases/tag/6.13.0
https://github.com/advisories/GHSA-52x6-gq3r-vpf4