Back to feed
Dev.to
Dev.to
7/13/2026
CVE-2026-42271: How a Popular AI Gateway Became an RCE Vector — And What to Audit in Your Stack

CVE-2026-42271: How a Popular AI Gateway Became an RCE Vector — And What to Audit in Your Stack

Short summary

CVE-2026-42271 is a command-injection flaw in LiteLLM, a widely deployed open-source AI gateway, allowing authenticated RCE via MCP-server preview endpoints. CISA added it to the KEV catalog after active exploitation was confirmed, and it chains with a Starlette host-header bypass for unauthenticated access. The author provides a concrete audit checklist covering version upgrades, endpoint exposure, authentication boundaries, process privileges, and MCP server inventory.

  • •LiteLLM CVE-2026-42271 enables RCE via MCP preview endpoints; CISA confirmed active exploitation
  • •Chains with Starlette host-header bypass (CVE-2026-48710) for unauthenticated access
  • •Concrete checklist: upgrade to ≥1.83.7, disable unused MCP endpoints, run as non-root, inventory all MCP servers

Generated with AI, which can make mistakes.

#ai-tools#ai-agents#open-source
Read full article at Dev.to

Is this a good recommendation for you?

Comments

Failed to load comments. Please try again.

Explore more

LiteLLM Vulnerability Chain Enables Full AI Gateway Takeover from Default Account
Dev.to
AI-Powered IDEs Face Critical Prompt Injection Risks
Dev.to
Cline supply chain attack: prompt injection via GitHub issue title led to malicious npm package distribution
Dev.to
The original headline is: "I Scanned 3 Major AI Agent Frameworks. Here Are the 332 Critical Vulnerabilities"
Dev.to