pypdf: pypdf is a free and open-source pure-python PDF library
CVE-2026-102998 is fixed in pypdf on 1 platform by DEBIAN-CVE-2026-102998 (version 6.19.0-1), released October 4, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pypdf · Debian 14 | 6.19.0-1 | DEBIAN-CVE-2026-102998 | Oct 4, 2026 |
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