Hi,

The following vulnerability was published for pypdf.

CVE-2026-41168[0]:
| pypdf is a free and open-source pure-python PDF library. An attacker
| who uses a vulnerability present in versions prior to 6.10.1 can
| craft a PDF which leads to long runtimes. This requires cross-
| reference streams with wrong large `/Size` values or object streams
| with wrong large `/N` values. This has been fixed in pypdf 6.10.1.
| As a workaround, one may apply the changes from the patch manually.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-41168
https://www.cve.org/CVERecord?id=CVE-2026-41168
[1] https://github.com/py-pdf/pypdf/pull/3733
[2] https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore