Vulnerability Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/pypdf/commit/5ef728f0e16d225c853e89f861ba0a67402fe3f2
- https://github.com/py-pdf/pypdf/pull/4219
- https://github.com/py-pdf/pypdf/releases/tag/6.21.0
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-6vvc-x485-93v7
FAQ
What is CVE-2026-113789?
CVE-2026-113789 is a documented vulnerability. pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form ...
How severe is CVE-2026-113789?
CVSS scoring is not yet available for CVE-2026-113789. Check NVD for updates.
Is there a patch for CVE-2026-113789?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.