PT-2026-103586 · Py Pdf · Pypdf
CVE-2026-102995
·
Published
2026-09-30
·
Updated
2026-09-30
CVSS v4.0
8.7
High
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can place unusually large source-code or destination-string tokens in a font /ToUnicode mapping, causing pypdf/ cmap.py parse bfchar to decode and retain oversized values during operations such as text extraction and consume excessive memory. This is a second follow-up to earlier /ToUnicode resource-consumption fixes and is limited to the remaining token-length path. This issue is fixed in version 6.18.1.
Fix
Resource Exhaustion
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Weakness Enumeration
Related Identifiers
Affected Products
Pypdf