What is GHSA-jj6c-8h6c-hppx?

GHSA-jj6c-8h6c-hppx is a security advisory published by GitHub Security Advisories with Medium severity. pypdf has long runtimes for wrong size values in cross-reference and object streams

Which CVE IDs does GHSA-jj6c-8h6c-hppx cover?

GHSA-jj6c-8h6c-hppx covers the following CVE IDs: CVE-2026-41168. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-jj6c-8h6c-hppx?

GHSA-jj6c-8h6c-hppx has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

Which products are affected by GHSA-jj6c-8h6c-hppx?

GHSA-jj6c-8h6c-hppx affects 1 product, including: pip/pypdf:\u003c 6.10.1.

GHSA-jj6c-8h6c-hppxMediumCVSS 5.3

pypdf has long runtimes for wrong size values in cross-reference and object streams

Vendor

GitHub Security Advisories

Published

April 15, 2026

Last Modified

April 24, 2026

🔗 CVE IDs covered (1)

CVE-2026-41168 →

📋 Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large /Size values or object streams with wrong large /N values.

Patches

This has been fixed in pypdf==6.10.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3733.

🎯 Affected products1

pip/pypdf:< 6.10.1

🔗 References (6)

https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx
https://github.com/py-pdf/pypdf/pull/3733
https://github.com/py-pdf/pypdf/releases/tag/6.10.1
https://nvd.nist.gov/vuln/detail/CVE-2026-41168
https://github.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3
https://github.com/advisories/GHSA-jj6c-8h6c-hppx