CVE-2026-84311 | BDVDB-2026-367165 Detail

Description#

pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-09-01Record published in the CVE List.
2. Version 22026-09-02Most recent update recorded in the CVE List.