The Bitly oauth2_proxy in version 2.1 and earlier was affected by an open redirect vulnerability during the start and termination of the 2-legged OAuth flow. This issue was caused by improper input validation and a violation of RFC-6819
{
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2021-05-19T22:31:56Z",
"severity": "MODERATE",
"cwe_ids": [
"CWE-601"
]
}