Executive brief
pypdf has possible long runtimes/large memory usage for large /ToUnicode streams
Affected products
- PyPI pypdf
Junglewise Threat Intelligence
CVE-2026-27025: PYSEC-2026-3024 - pypdf has possible long runtimes/large memory usage for large /ToUnicode streams
CVE-2026-27025 · Severity: medium · CVSS 4 · Published 2026-07-13
Technologies: pypdf (PyPI). Vendors: PyPI.
Related threats
- pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject.
- pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_
- pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pyp
- pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pyp
- pypdf uncontrolled resource consumption in ToUnicode streams