This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-71870 →

UBUNTU-CVE-2026-71870

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py functio...

Original description

The description as published by the source.

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py function parse_bfrange parses unusually large source-code or destination-string tokens in a font /ToUnicode CMap during text extraction. This issue is fixed in 6.15.0.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:24.04:LTS pypdf

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.10 pypdf

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS pypdf

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

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