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CVE-2026-41168

5.3 · MEDIUM

pypdf is a free and open-source pure-python PDF library.

Published Apr 22, 2026CWE-834EPSS 0.52%

Overview

CVE-2026-41168 is a medium-severity vulnerability. It was published on April 22, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.1 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. This has been fixed in pypdf 6.10.1. As a workaround, one may apply the changes from the patch manually.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3GitHubgithub.com/py-pdf/pypdf/pull/3733GitHubgithub.com/py-pdf/pypdf/releases/tag/6.10.1GitHubgithub.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41168?

CVE-2026-41168 is a medium-severity vulnerability. It was published on April 22, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-41168?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-41168?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41168?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41168 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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