Us Weekly, who was first to report the news, reports that Hudgens has been telling close friends about their breakup.
The pair, who began dating in September 2011, sparked speculation that they had broken up after it appeared like they didn't spend the holidays together, which is a telltale sign.
Representatives for the actors did not immediately return requests for comment.
Butler was also noticeably absent from Hudgens' social media posts documenting her 31st birthday celebrations on December 13, before the actress jetted off to Vals, Switzerland for a winter getaway.
In recent months, however, it seems as though Hudgens, 31, and Butler, 28, have been spending time apart.
"Happy Halloween from my family to yours".
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That's a remarkable turnaround after what was a forgettable Ashes in which he tallied only 95 runs in 10 innings. JL (Justin Langer) noted to be that I've been batting for two hours every net session, which is unlike me.
Hudgens, 31, last shared a photo of herself with Butler, 28, in a photo on Instagram for Halloween previous year. Earlier that month, Hudgens publicly congratulated him on landing the coveted role of Elvis Presley in Baz Luhrmann's upcoming biopic. ET chatted with her in August 2018 at the premiere of her film, Dog Days, where she gushed about Butler's high-profile projects.
"We'll always have each other's backs, so it's nice", she added.
In a January 2020 interview with Cosmo UK, Hudgens spoke about the difficulty that she and Butler faced being long distance at times - but she insisted they "make it work". "Each couple has their own journey". "Everyone's clock is different".
"It's eight years this year - FaceTime, good communication, respect and trust [are what keep us going]", Hudgens told the outlet.
On the subject of how they kept their relationship strong, Butler told Entertainment Tonight in 2015, "I think you just have to - it's important to put that other person first".