An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9. It has Incorrect Access Control. Unprivileged members of a project are able to post comments on confidential issues through an authorization issue in the note endpoint.
{
"versions": [
{
"introduced": "5.4.0"
},
{
"fixed": "11.8.9"
},
{
"introduced": "5.4.0"
},
{
"fixed": "11.8.9"
}
]
}