CVE-2026-84310 — pypdf: Possible long runtimes/large memory usage when retrieving outlines
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/_doc_common.py _get_outline to consume long runtimes and …
Published: 2026-09-01 · CVSS: 4.8 · CVSS 4.0
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/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7