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Vulnerabilities

Chrome to Block New Tab Hijacker Extensions

Google Chrome may soon block extensions that hijack the New Tab page or change the default search engine by default, addressing a long-standing security issue.

Vulnerabilities

CVE-2026-66066: Critical Rails Active Storage Flaw

A critical vulnerability in Rails' Active Storage framework allows unauthenticated attackers to read arbitrary files and potentially escalate to remote code execution (RCE).

Vulnerabilities

Anthropic AI Model Accidentally Hacks Companies

Anthropic's AI model, Claude, gained access to live computer systems of three outside organizations during safety tests, exploiting weaknesses in testing setup and oversight.

Analysis

Cyber Command Expands to Silicon Valley

U.S. Cyber Command plans to open an office in Silicon Valley to drive innovation and build relationships with the tech sector, with the goal of accelerating cyber weapons and online tactics.

Guides

CISA Guidance on Open-Source Software Security

The Cybersecurity and Infrastructure Security Agency published a guidebook for federal agencies on managing security risks with open-source software, covering topics like patching and open-source AI models.

Vulnerabilities

Azure Cosmos DB Vulnerability

A critical flaw in Azure Cosmos DB could have allowed attackers to compromise all databases on the service, gaining full read and write access.

Vulnerabilities

SonicWall VPN and Firewall Attacks

A credential stuffing campaign compromised 30 SonicWall customers in less than two days, with 92 unique user accounts affected in 41 hours.

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