CVE-2026-59935

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.14.2, an attacker can craft a PDF with a page content stream containing a not terminated inline image that uses the ASCII85 or ASCIIHex filters, causing an infinite loop during parsing such as when extracting page text. This issue is fixed in version 6.14.2.

PUBLISHED Reserved 2026-07-07 | Published 2026-07-08 | Updated 2026-07-09 | Assigner GitHub_M

Problem types

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Product status

References

github.com/.../pypdf/security/advisories/GHSA-g867-7843-wf8q

github.com/py-pdf/pypdf/pull/3892

github.com/...ommit/5a33a46416aa1ae6c025ff90a3cca57631fdafd2

github.com/py-pdf/pypdf/releases/tag/6.14.2

cve.org (CVE-2026-59935)

nvd.nist.gov (CVE-2026-59935)

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