CVE-2026-102998

pypdf is a free and open-source pure-python PDF library.

Pypdf

pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.

30. Sep 2026

Ausgewertete Quellen

• NVD
  CVE-2026-102998
• GitHub
  https://github.com/py-pdf/pypdf/security/advisories/GHSA-php9-fj8v-98fj