CVE-2026-84311 (GCVE-0-2026-84311)
Vulnerability from cvelistv5
Published
2026-09-01 20:03
Modified
2026-09-02 16:02
Severity ?
4.8 (Medium) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
Summary
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.
References
Impacted products
Vendor Product Version
py-pdf pypdf Version: < 6.16.1
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