Verification Is Not Interpretation: A Common Failure Pattern In Authentication Systems
Why Security Failures Frequently Emerge After Successful Cryptographic Validation
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Many modern authentication systems correctly verify signatures yet still make incorrect trust decisions. This lesson examines why verification and interpretation are distinct security operations and how architectural gaps between them create fail-open conditions.
CategorySecurity Architecture
EcosystemMulti-Ecosystem
DifficultyAdvanced
FikreSekhel Research12 min readJun 04, 2026
Research Notes
Scanner Signal vs Reachable Exploitability in Dependency Intelligence
Why a vulnerable dependency in the graph is not the same thing as a reachable security flaw in the application runtime
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A technical research note explaining how vulnerability intelligence must separate dependency-level scanner findings from validated exploitability, using Axios and Twilio as a practical case study.
CategoryVulnerability Intelligence
EcosystemJavaScript
DifficultyAdvanced
FikreSekhel Research12 min readJun 03, 2026
Research Notes
Trust Boundary Analysis of MCP Tool Schema Propagation in LangChain.js
How Remote MCP-Provided Schemas Traverse Tool Conversion Pipelines Without Prototype Pollution but With Full Schema Preservation
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A research note examining how Model Context Protocol (MCP) tool schemas propagate through LangChain.js conversion pipelines, preserving special JSON property names such as __proto__ and constructor.prototype across trust boundaries without demonstrating prototype pollution.
CategoryAI Security Architecture
EcosystemJavaScript
Difficulty
FikreSekhel Research12 min readJun 02, 2026
Research Notes
Protobuf Parser Behavior Research Timeline
From Static Scanner Findings to Confirmed Parser Semantics and Security-Relevant Misuse Primitives
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A chronological research timeline documenting how protobuf parser behavior was evaluated through static analysis review, malformed payload construction, recursion testing, canonicalization testing and partial state retention validation.