CVE-2017-1000070: OAUTH2 Proxy Project OAUTH2 Proxy

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

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

Affected products

• OAUTH2 Proxy Project OAUTH2 Proxy: up to and including 2.1

Published 2017-07-17. Last modified 2026-06-17.