This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-102995 →
DEBIAN-CVE-2026-102995
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 to...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
pypdf
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
pypdf
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
pypdf
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.19.0-1"}]}]
Debian:12
pypdf2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org