CVE-2025-52886: Freedesktop Poppler

Medium severity, CVSS 5.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Poppler is a PDF rendering library. Versions prior to 25.06.0 use `std::atomic_int` for reference counting. Because `std::atomic_int` is only 32 bits, it is possible to overflow the reference count and trigger a use-after-free. Version 25.06.0 patches the issue.

Affected products

• Freedesktop Poppler: before 25.06.0 (fixed in 25.06.0)

Published 2025-07-02. Last modified 2026-06-17.