As of the current date, there are no officially announced or confirmed film projects titled "Hag" scheduled for release in 2026. The search results indicate various unrelated productions, such as the horror film "The Hagstone Demon" (2011) and the action-adventure movie "Matchbox the Movie" (scheduled for 2026), but none match the specific title and year combination requested.
This film does not exist in current public records, so no legitimate streaming platforms or theaters offer it.