Episode 169: Attacking OAuth 2.1

Episode 169: In this episode of Critical Thinking - Bug Bounty Podcast gr3pme goes over some of the changes from OAuth 2.0 vs 2.1 and how Hackers can capitalize.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.ioShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X:&nbsp;https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/&nbsp;====== Ways to Support CTBBPodcast ======Hop on the CTBB Discord at https://ctbb.show/discord!We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.You can also find some hacker swag at https://ctbb.show/merch!Today's Sponsor: Check out ThreatLocker Ringfencinghttps://www.criticalthinkingpodcast.io/tl-rf====== This Week in Bug Bounty ======Intigriti is providing free Burp Pro for Hackers!https://www.intigriti.com/blog/news/intigriti-collaborates-with-portswigger-to-support-ethical-hacking-excellence====== Resources ======Django-allauth Account Takeover (ZeroPath Audit)https://zeropath.com/blog/django-allauth-account-takeover-vulnerabilitiesCVE-2025-4144: Cloudflare Workers PKCE Bypasshttps://github.com/cloudflare/workers-oauth-provider/security/advisories/GHSA-qgp8-v765-qxx9CVE-2025-54576: OAuth2-Proxy Auth Bypasshttps://zeropath.com/blog/cve-2025-54576-oauth2-proxy-auth-bypass<span style="bac