The repository settings resource in Atlassian Bitbucket Server before version 5.6.0 allows remote attackers to read the first line of arbitrary files via a path traversal vulnerability through the default branch name.
[
{
"product": "Bitbucket Server",
"vendor": "Atlassian",
"versions": [
{
"status": "affected",
"version": "prior to 5.6.0"
}
]
}
]