Sebastion
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research

4 pieces of writing

security13 min read

Authentication bypass in 2026: access validation keeps failing before critical operations

Authentication bypass keeps recurring because modern applications validate identity at convenient edges, then perform critical operations in layers that no longer know whether access was proven.

security13 min read

CIFSwitch CVE-2026-46243 and PraisonAI show privilege escalation is an architectural antipattern

security12 min read

Gogs, PraisonAI and KnowledgeDeliver show authentication bypass is a self-hosted platform design failure

security11 min read

Seven authentication bypasses that keep shipping in 2025 and 2026: the same architectural antipatterns, rewritten in new frameworks

Modern frameworks keep reimplementing the same seven authentication bypass patterns. From hardcoded credentials to missing origin checks, the bugs are structural, not accidental, and the AI tooling boom is accelerating the cycle.