CVE-2026-51807 | osamu620 OpenHTJ2K up to 0.18.4 Coding Units coding_units.cpp parse_packet_header buffer overflow

A vulnerability was found in osamu620 OpenHTJ2K up to 0.18.4. It has been rated as critical. The affected element is the function j2k_precinct_subband::parse_packet_header of the file source/core/coding/coding_units.cpp of the component Coding Units. This manipulation causes buffer overflow.

The identification of this vulnerability is CVE-2026-51807. It is possible to initiate the attack remotely. There is no exploit available.