CVE-2026-113789

— UNSCOREDpublic exploit available

Published 2026-10-21 · Updated 2026-10-22

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

Weaknesses

CWE-400, CWE-407

Public exploit & PoC 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

All 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

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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