En bref
- CVE-2026-27025 est une vulnérabilité MOYENNE (CVSS 5.5) touchant pypdf, pypdf (pypdf project).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.19%, plus élevée que 8.8% des vulnérabilités.
- Correctif : mettre à jour vers 6.7.1 ou plus récent.
| Package | Affected versions | Patched versions |
|---|
| pypdf PyPI | < 6.7.1
| 6.7.1
|
| pypdf | < 6.7.1
| 6.7.1
|
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction.
Patches
This has been fixed in pypdf==6.7.1.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3646.
NVD description
pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires parsing the /ToUnicode entry of a font with unusually large values, for example during text extraction. This vulnerability is fixed in 6.7.1.
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