CVE-2026-3776
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Apr 01, 2026
Vendor
unknown
Description
The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.