PT-2026-49742 · Pypi · Pypdf

Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-54530

OSV

CVSS v4.0

6.9

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2026-54530

GHSA-52X6-GQ3R-VPF4

Affected Products

Pypdf

References · 5

• https://osv.dev/vulnerability/GHSA-52x6-gq3r-vpf4 · Vendor Advisory
• https://github.com/py-pdf/pypdf/releases/tag/6.13.0 · Note
• https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4 · Note
• https://github.com/py-pdf/pypdf/pull/3830 · Note
• https://github.com/py-pdf/pypdf · Note