CVE-2026-102998
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Sep 30, 2026
Vendor
unknown
Description
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.