CVE-2026-113794

— 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 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.

Weaknesses

CWE-835

Public exploit & PoC references

https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58
https://github.com/py-pdf/pypdf/issues/4169
https://github.com/py-pdf/pypdf/pull/4170
https://github.com/py-pdf/pypdf/releases/tag/6.20.0
https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3

All references

https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58
https://github.com/py-pdf/pypdf/issues/4169
https://github.com/py-pdf/pypdf/pull/4170
https://github.com/py-pdf/pypdf/releases/tag/6.20.0
https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3

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

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