Vulnerability Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/pypdf/commit/18bd2981a74479483a0b9507602c58a63d6c9b12
- https://github.com/py-pdf/pypdf/pull/4218
- https://github.com/py-pdf/pypdf/releases/tag/6.21.0
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-f54x-cmq8-qg57
FAQ
What is CVE-2026-113790?
CVE-2026-113790 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 containing arrays or dictionaries with many elements, causing parsing to consume large amounts of ...
How severe is CVE-2026-113790?
CVSS scoring is not yet available for CVE-2026-113790. Check NVD for updates.
Is there a patch for CVE-2026-113790?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.