CVE-2026-102994 — pypdf: Possible long runtimes/large memory usage when parsing indirect objects
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a lo…
Published: 2026-09-30 · CVSS: 8.7 · CVSS 4.0
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7