CVE-2026-119206 is a vulnerability in the pypdf library used by psutils that allows an attacker to craft a malicious PDF file causing long runtimes when retrieving page labels. This can lead to denial of service due to resource exhaustion. The issue affects pypdf versions 3.0 and later and has been fixed in version 6.21.3. Users unable to upgrade immediately can apply the changes from the referenced pull request as a workaround.