Episode 165: Protobuf Hacking, AI-Powered Bug Hunting, and Self-Improving Claude Workflows

Episode 167: In this episode of Critical Thinking - Bug Bounty Podcast we welcome Valeriy Shevchenko to talk about program management, anchor programs, and Theft in Bug Bounty.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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-rfToday’s Guest: https://x.com/Krevetk0Valeriy====== This Week in Bug Bounty ======HackerOne’s Bug Bounty Maturity Framework:https://www.hackerone.com/blog/program-maturity-framework-bug-bounty-operationsIntigriti is hiring a Product Security Analysthttps://jobs.criticalthinkingpodcast.io/jobs/product-security-analyst-25ef4706====== Resources ======Valeriy’s Bloghttps://krevetk0.medium.com/====== Timestamps ======(00:00:00) Introduction(00:03:15) Valeriy's Bug story(00:19:48) Anchor Programs and Bug Hunting Motivation(00:29:50) Stealing Bugs

Episode 166: In this episode of Critical Thinking - Bug Bounty Podcast we talk about Rez0’s Claude Skill Secrets, when AI Generated reports fall apart, and agents vs filters.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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: Adobe====== This Week in Bug Bounty ======Intigriti launched their ambassadors program. https://www.intigriti.com/ambassadorAdobe will be at Hack The Bayhttps://www.hackthebay.org/Bug Bounty Maturity Frameworkhttps://bugbountymaturity.com/====== Resources ======h1-brainhttps://github.com/PatrikFehrenbach/h1-braincaido skillshttp://github.com/caido/skillsTweet from Karpathyhttps://x.com/karpathy/status/2031767720933634100?s=20Find every inefficiency in your Claude workflow with one prompthttps://x.com/shannholmberg/status/2030605364421595468====== Timestamps ======(00:00:00) Introduction(00:08:28) Claude skills(00:30:00) How AI Generated reports fall apart(00:38:44) Orchestration(00:49:10) Agents vs Folders

Episode 165: In this episode of Critical Thinking - Bug Bounty Podcast Justin recaps his Zero Trust World experience, before we dive into Permissions issues client-side bugs, New Hardware Hacking Classes, and using AI to hack.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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====== Resources ======bbscope Updatehttps://x.com/sw33tLie/status/2029344643154919720Matt Brown's Youtube Channelhttps://www.youtube.com/channel/UC3VDCeZYZH7mCihtMVHqppwMatt's Twitter:https://x.com/nmatt0MCP server for HackerOne to search reportshttps://x.com/OriginalSicksec/status/2029503063095124461?s=20Caido Skillshttps://github.com/caido/skillsThe Agentic Hacking Era: Ramblings and a Toolhttps://josephthacker.com/hacking/2026/03/06/the-agentic-hacking-era.htmlAnnouncing AI-driven Caidohttps://caido.io/blog/2026-03-06-caido-skill====== Timestamps ======(00:00:00) Introduction(00:06:23) bbscope report dumping & Matt Brown Training(00:13:10) MCP server for HackerOne to search reports & protobuff success(00:24:24) Hacking Mics with Permissions issues client-side bugs(00:27:26) Can AI Hack things?

Episode 164: In this episode of Critical Thinking - Bug Bounty Podcast Justin sits down with Tommy DeVoss to talk about his origin story, Yahoo bugs, and how Tommy first got Justin into Bug BountyFollow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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 Guest: https://x.com/thedawgyg====== This Week in Bug Bounty ======Python pitfalls: Turning developer mistakes into vulnerabilitieshttps://www.yeswehack.com/learn-bug-bounty/python-pitfalls-turning-developer-mistakes?utm_source=critical-thinking&utm_medium=sponsored&utm_campaign=article-research-python-pitfalls====== Timestamps ======(00:00:00) Introduction(00:06:22) Yahoo SSRF(00:14:56) Tommy's Origin(00:44:10) Bug Bounty(00:51:47) SSRF Attraction, AI implementation, & Browser Hacking

Episode 163: In this episode of Critical Thinking - Bug Bounty Podcast It’s that time of year again! We’re looking at the Portswigger Research list of top 10 web hacking techniques of 2025.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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!====== Resources ======Parser Differentials: When Interpretation Becomes a Vulnerabilityhttps://www.youtube.com/watch?v=Dq_KVLXzxH8XSS-Leak: Leaking Cross-Origin Redirectshttps://blog.babelo.xyz/posts/cross-site-subdomain-leak/Playing with HTTP/2 CONNECThttps://blog.flomb.net/posts/http2connect/Next.js, cache, and chains: the stale elixirhttps://zhero-web-sec.github.io/research-and-things/nextjs-cache-and-chains-the-stale-elixirSOAPwn: Pwning .NET Framework Apps Through HTTP Client Proxies And WSDLhttps://watchtowr.com/wp-content/uploads/SOAPwnwatchtowr_soappwn-research-whitepaper_10-12-2025.pdfCross-Site ETag Length Leakhttps://blog.arkark.dev/2025/12/26/etag-length-leakLost in Translation: Exploiting Unicode Normalizationhttps://www.youtube.com/watch?v=ETB2w-f3pM4ORM Leaking More Than You Joined Forhttps://www.elttam.com/blog/leaking-more-than-you-joined-for/Novel SSRF Technique Involving HTTP Redirect Loopshttps://slcyber.io/research-center/novel-ssrf-technique-involving-http-redirect-loops/Successful Errors: New Code Injection and SSTI Techniqueshttps://github.com/vladko312/Research_Successful_Errors====== Timestamps ======(00:00:00) Introduction(00:02:33) Parser Differentials: When Interpretation Becomes a Vulnerability(00:11:02) XSS-Leak: Leaking Cross-Origin Redirects(00:18:25) Playing with HTTP/2 CONNECT(00:22:10) Next.js, cache, and chains: the stale elixir(00:29:15) SOAPwn: Pwning .NET Framework Apps Through HTTP Client Proxies And WSDL(00:34:27) Cross-Site ETag Length Leak(00:41:47) Lost in Translation: Exploiting Unicode Normalization(00:47:27) ORM Leaking More Than You Joined For(00:54:07) Novel SSRF Technique Involving HTTP Redirect Loops(00:58:40) Successful Errors: New Code Injection and SSTI Techniques

Episode 162: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph sit down with HackerOne Founder & CTO Alex Rice to discuss concerns of Using Hacker Data for AI and decreasing bounties.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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: Join Justin at Zero Trust World in March and get $200 off registration with Code ZTWCTBB26https://ztw.com/Today’s Guest: https://x.com/senorarroz====== This Week in Bug Bounty ======XML external entity: The ultimate Bug Bounty guide to exploiting XXE vulnerabilitieshttps://www.yeswehack.com/learn-bug-bounty/xml-external-entity-guide-xxe?utm_source=Critical_Thinking&utm_medium=Youtube&utm_campaign=XXE_Critical_Thinking&utm_id=XXE_CTBug Bounty Maturity Frameworkhttps://bugbountymaturity.com/====== Resources ======Confidential Information and Confidentiality Obligationshttps://www.hackerone.com/terms/general#:~:text=HackerOne%20may%20use%20Confidential%20Information%20to%20develop%20and/or%20improve%20its%20Services%20(for%20example%2C%20to%20identify%20trends%2C%20and%20to%20train%20AI%20models)%20provided%20such%20use%20does%20not%20result%20in%20disclosure%20of%20Confidential%20Information%20to%20unauthorized%20third%20partiesOwnership and Licenseshttps://www.hackerone.com/terms/community#:~:text=8.%20Ownership%20and%20LicensesI argued with an AI regarding HackerOne using Hacker reports to train PtaaShttps://bugbounty.forum/post/183ff0fc-eb9e-47f8-991d-c0aa5b0bba71HackerOne PTaaS (likely training their AI on private reports data)https://www.reddit.com/r/bugbounty/comments/1r5hixk/hackerone_ptaas_likely_training_their_ai_on/What Makes Agentic PTaaS Different in Real Environmentshttps://www.hackerone.com/blog/agentic-penetration-testing-as-a-service#:~:text=Our%20agents%20are,real%20enterprise%20constraints====== Timestamps ======(00:00:00) Introduction(00:08:44) HackerOne AI Terms of Service (00:24:56) Agentic PTaaS(00:38:09) Selling data(00:43:49) Decrease in Bounties

Episode 161: In this episode of Critical Thinking - Bug Bounty Podcast Justin Gives us some quick hits regarding CSRF and Cross Consumer Attacks, and also touches on some breaking questions surrounding HackerOneFollow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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: Join Justin at Zero Trust World in March and get $200 off registration with Code ZTWCTBB26https://ztw.com/====== This Week in Bug Bounty ======AS Watsonhttps://app.intigriti.com/programs/aswatson/watsons/detailYesWeHack 2026 Reporthttps://choose.yeswehack.com/bug-bounty-report-2026-trends-and-key-insights-yeswehack?utm_source=youtube&utm_medium=sponsor-critical-thinking&utm_campaign=yeswehack-report-2026 ====== Resources ======PhoneLeak: Data Exfiltration in Gemini via Phone Callhttps://blog.starstrike.ai/posts/phoneleak-data-exfiltration-in-gemini-via-phone-call/Max's Tweet about decreasing bountieshttps://x.com/0xw2w/status/2020788164378427483HackerOne General Terms and Conditionshttps://www.hackerone.com/terms/generalResearch Review #-2: RCE in Google's AI code editor Antigravity (sudi)https://www.youtube.com/watch?v=JqvJSF2UMyY====== Timestamps ======(00:00:00) Introduction(00:03:26) YesWeHack 2026 Report(00:09:12) CSRF Realizations & Data Exfiltration in Gemini via Phone Call(00:14:38) 7urb0's Youtube, HackerOne decreasing bounties and Section    3.1 controversy.(00:19:06) Cross Consumer Attacks

Episode 160: In this episode of Critical Thinking - Bug Bounty Podcast Joseph and Brandyn. Chat through some news, Including a Cloudflare Zero-day, Turning List-Unsubscribe into an SSRF/XSS Gadget, & Magic String Denial of Service in Claude.Follow us on twitter at: https://x.com/ctbbpodcastGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X: https://x.com/Rhynoraterhttps://x.com/rez0__https://x.com/gr3pmeCritical Research Lab:https://lab.ctbb.show/ ====== 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: Adobe.Use code CTBB040126, and get a 10% bonus on your bounty for any AI vulnerability which is mapped to the OWASP LLM top 10.Valid on Adobe Acrobat Web - AI Assistant / PDF Spaces / Content Creation and presentation features using ExpressAdobe Express AI Assistant. Valid through April 1st, 2026Also we have a Google Cloud VRP Swag Bonus! Mention the podcast in any rewarded (cash or credit) VRP report submission before the end of April to receive bonus swag!====== Resources ======Cloudflare Zero-dayhttps://fearsoff.org/research/cloudflare-acmeTurning List-Unsubscribe into an SSRF/XSS Gadgethttps://security.lauritz-holtmann.de/post/xss-ssrf-list-unsubscribe/Breaking Multi-Tenant Isolation in Heroku Postgreshttps://allistair.sh/blog/breaking-heroku-postgres/Parse and Parse: MIME Validation Bypass to XSS via Parser Differentialhttps://lab.ctbb.show/research/parse-and-parse-mime-validation-bypass-to-xss-via-parser-differentialClaude Magic String Denial of Servicehttps://x.com/Frichette_n/status/2013988503336415522From WebView to Remote Code Injectionhttps://djini.ai/from-webview-to-remote-code-injection/DOM XSS Is Not Dead: The Rise of Polyglot Payloadshttps://blogs.jsmon.sh/dom-xss-is-not-dead-the-rise-of-polyglot-payloads/====== Timestamps ======(00:00:00) Introduction(00:06:17) Cloudflare Zero-day & Turning List-Unsubscribe into an SSRF/XSS Gadget(00:16:57) Breaking Multi-Tenant Isolation in Heroku Postgres & CTBB Research(00:25:46) Claude Magic String Denial of Service & From WebView to Remote Code Injection

Episode 159: In this episode of Critical Thinking - Bug Bounty Podcast we sit down with the Google Cloud VRP Team to deep-dive policy and reward changes, what the panel process looks like, and how to best configure for success.Follow us on XGot any ideas and suggestions? Feel free to send us any feedbackShoutout to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X:====== Ways to Support CTBBPodcast ======Hop on the CTBB DiscordWe also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.Get some hacker swagToday's Sponsor: Join Justin at Zero Trust World in March and get $200 off registration with Code ZTWCTBB26Mention the podcast in any rewarded (cash or credit) VRP report before the end of April to receive bonus swag!https://ztw.com/Today’s Guests:Darby HopkinsMichael Cote====== This Week in Bug Bounty ======AI Red Teaming Explained by AI Red TeamersGood Faith AI Research Safe HarborJoin the Adobe LHE at NULLCON GOA====== Resources ======‘Legendary Guy’ - Jakub DomerackiGoogle Cloud VRP rewards rulesGoogle Cloud VRP product tiersBug Hunters blog on the 2025 Google Cloud VRP bugSWATGoogle VRP DiscordGoogle VRP on X====== Timestamps ======(00:00:00) Introduction(00:10:03) CloudVRP Bugswat Event Breakdown(00:16:40) VRP Policy & Rewards Changes(00:04:50) Panel Process(01:00:08) Avoiding Downgrades(01:33:47) Scenarios for Success

Episode 159: In this episode of Critical Thinking - Bug Bounty Podcast we sit down with the Google Cloud VRP Team to deep-dive policy and reward changes, what the panel process looks like, and how to best configure for success.Follow us on XGot any ideas and suggestions? Feel free to send us any feedback here: [email protected] to YTCracker for the awesome intro music!====== Links ======Follow your hosts Rhynorater, rez0 and gr3pme on X:====== Ways to Support CTBBPodcast ======Hop on the CTBB DiscordWe also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.Get some hacker swagToday's Sponsor: Join Justin at Zero Trust World in March and get $200 off registration with Code ZTWCTBB26https://ztw.com/Google Cloud VRP Swag Bonus! Mention the podcast in any rewarded (cash or credit) VRP report submission before the end of April to receive bonus swag!Today’s Guests:Darby HopkinsMichael Cote====== This Week in Bug Bounty ======AI Red Teaming Explained by AI Red TeamersGood Faith AI Research Safe HarborJoin the Adobe LHE at NULLCON GOA====== Resources ======‘Legendary Guy’ - Jakub DomerackiGoogle Cloud VRP rewards rulesGoogle Cloud VRP product tiersBug Hunters blog on the 2025 Google Cloud VRP bugSWATGoogle VRP DiscordGoogle VRP on X====== Timestamps ======(00:00:00) Introduction(00:10:03) CloudVRP Bugswat Event Breakdown(00:16:40) VRP Policy & Rewards Changes(00:04:50) Panel Process(01:00:08) Configuring for Success & Avoiding Downgrades(01:33:47) Scenarios for Success