Independent reporter Richard Lee had attempted to sue the city of Seattle and its police department for blocking the release of the pictures taken by law enforcement officers after Cobain killed himself more than twenty years ago.
The journalist had "violated" legal procedures according to Seattle attorney Pete Holmes.
The graphic photos are said to show the musician's full body and the damage to his head from a self-inflicted shotgun blast, according to a declaration filed last week by Cobain's wife, the Hole guitarist Courtney Love, who was trying to block the release.
During a 40-minute hearing Superior Court Judge Theresa Doyle dismissed the claim and said that Lee had failed to serve the city of Seattle with a viable lawsuit. The city stated that Lee's request for the death scene photos were exempt from public records disclosure laws.
In a statement following the hearing, Love said: "Certainly, public disclosure would reopen all my old wounds, and cause me and my family permanent, indeed, endless and needless, pain and suffering, and would be a gross violation of our privacy interests."
Cobain and Love's daughter Frances Bean Cobain said she had received death threats and invasions into her private life from obsessive fans of her late father.
"Releasing these photographs into the public domain would encourage more disturbed stalkers and fanatical threats," she said.
Cobain achieved near overnight fame with the release of Nirvana's second album Nevermind and had a whirlwind introduction into the world of celebrity.
He was dubbed the leader of Seattle's Grunge rock movement, a mantle he was reluctantly forced to accept.
He was 27 years old when his body was found in a room above the garage at his Seattle home. He had died from a self-inflicted gun-shot wound on 5 April 1994 although his body was not discovered for three days.
Lee had also filed his lawsuit before the city had been given a chance to respond to his public records request to obtain the pictures. He had previously produced a public access television show called Kurt Cobain Was Murdered.