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Jorian Woltjer

Jorian is a Security Researcher at Aikido, working predominantly on the AI Pentesting team. He has experience as a pentester and is an avid CTF player, writing about novel techniques in his free time
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Blog posts by Jorian Woltjer

February 19, 2026
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Vulnerabilities & Threats

SvelteSpill: A Cache Deception Bug in SvelteKit + Vercel

SvelteSpill is a cache deception vulnerability affecting default SvelteKit apps deployed on Vercel. Authenticated responses can be cached and exposed across users. Learn how to check if you’re vulnerable and how to mitigate risk.

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#Vulnerabilities

#DAST

#AI Penetration Testing

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