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Critical RCE Vulnerabilities in LiteLLM Proxy Server: LiteLLM, a proxy server that forwards requests to AI model APIs, disclosed three critical and high-severity flaws in versions 1.74.2 through 1.83.6. Two test endpoints allowed attackers with valid API keys to execute arbitrary code (running any commands an attacker wants) on the server by submitting malicious configurations or prompt templates without sandboxing (CVE-2026-42271, CVE-2026-42203, both critical), while a SQL injection flaw (inserting malicious code into database queries) let unauthenticated attackers read or modify stored API credentials (CVE-2026-42208, high).
ClaudeBleed Exploit Allows Extension Hijacking in Chrome: Anthropic's Claude browser extension contains a vulnerability that allows malicious Chrome extensions to hijack it and perform unauthorized actions like exfiltrating files, sending emails, or stealing code from private repositories. The flaw stems from the extension trusting any script from claude.ai without verifying the actual caller, and while Anthropic released a partial fix in version 1.0.70 on May 6, researchers report it remains exploitable when the extension runs in privileged mode.
AI Systems Show Triple the High-Risk Vulnerabilities of Legacy Software: Penetration testing data reveals that AI and LLM systems have 32% of findings rated high-risk compared to just 13% for traditional software, with only 38% of high-risk AI issues getting resolved. Security experts attribute this gap to rapid deployment without mature controls, novel attack surfaces like prompt injection (tricking AI by hiding instructions in input), and fragmented responsibility for remediation across teams.
Model Context Protocol Emerging as Critical Security Blind Spot: Model Context Protocol (MCP, a plugin system connecting AI agents to external tools) has become a major vulnerability vector as organizations fail to scan for or monitor MCP-related risks. Recent supply chain attacks, such as the postmark-mcp npm package that exfiltrated emails from 300 organizations, demonstrate how attackers exploit widely-trusted MCP packages and hardcoded credentials in AI configurations to enable credential theft and supply chain compromises at scale.
Fix: Update X-Pack Machine Learning to version 6.2.4 or 5.6.9 or later. The source references a security update at https://discuss.elastic.co/t/elastic-stack-6-2-4-and-5-6-9-security-update/128422.
NVD/CVE Database