The webhook endpoint in Jenkins Git Plugin 4.11.3 and earlier provide unauthenticated attackers information about the existence of jobs configured to use an attacker-specified Git repository.
[
{
"product": "Jenkins Git Plugin",
"vendor": "Jenkins project",
"versions": [
{
"lessThanOrEqual": "4.11.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "4.9.3"
}
]
}
]