Developer Explores AI Tools and Plans MERN Stack Coding Practice Project

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A developer spent the day researching new AI tools currently available in the market. They conceptualized a coding practice tool built using MongoDB and the MERN stack. The deployment strategy for the project is still being considered. The developer also continued their job search, applying to several positions during the day. One job listing site unexpectedly loaded in Japanese, though the issue was resolved by adjusting the language settings.

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Security Report Flags High Flash Loan Attack Risk on DeFi Protocol Portal

A DeFi security research team published an analysis on September 29, 2026, identifying six flash loan attack vectors targeting Portal, a cross-chain liquidity protocol with approximately $1.8 billion in total value locked across Ethereum L1 and L2. The report assigned Portal an aggregate risk score of 8 out of 10, placing it in the high-risk category. The most critical vulnerability involves oracle price manipulation, where an attacker could use a flash loan to distort Portal's time-weighted average price oracle and exploit mispriced collateral or liquidations, potentially draining up to 30 percent of TVL in a single transaction. Other significant risks include re-entrancy attacks through flash loan receiver callbacks and a 'liquidation sandwich' technique that could siphon collateral from borrowers. Researchers strongly recommended immediate remediation of oracle integrity safeguards and re-entrancy protections as priority measures.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Coolify Patches Password Reset Poisoning Flaw That Could Redirect Tokens to Attackers

A vulnerability in Coolify, an open-source deployment platform, allowed attackers to manipulate password reset links by injecting a forged 'x-forwarded-host' header into requests. Because the application derived the reset URL destination from untrusted request metadata rather than a fixed configuration value, a crafted header could redirect the reset token to an attacker-controlled server. The flaw involved a host-validation cache bug that skipped validation on an empty cache, enabling the malicious header to influence the generated link. Exploitation required the forged header to reach the application and the victim to click the link, meaning it was not an automatic or universal compromise. Coolify credited security researcher bugbunny.ai for the report and released a patch in version v4.0.0-beta.471.

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