Kurz gesagt
- CVE-2026-102999 ist eine Schwachstelle (HOCH (CVSS 7.5)) in pypdf, pypdf (pypdf project).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.35%, höher als bei 28.4% aller Schwachstellen.
- Abhilfe: auf 6.19.0 oder neuer aktualisieren.
| Package | Affected versions | Patched versions |
|---|
| pypdf PyPI | < 6.19.0
| 6.19.0
|
| pypdf | < 6.19.0
| 6.19.0
|
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing the embedded files through the dictionary-based API.
Patches
This has been fixed in pypdf==6.19.0.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #4081.
NVD description
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF containing many embedded files can cause the dictionary-based attachments API in pypdf/_doc_common.py to reparse the full attachment list for each content lookup, producing repeated work and long runtimes when an application accesses the embedded-file mapping. This issue is fixed in version 6.19.0.
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