High severity8.1NVD Advisory· Published Aug 4, 2026· Updated Aug 6, 2026
CVE-2026-18830
CVE-2026-18830
Description
Insufficient input validation in Amazon Bedrock AgentCore harness might allow an authenticated remote user to execute configured tools bypassing model invocation and security controls via crafted content blocks in conversation messages. AWS has addressed this issue. No customer action is required.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
1News mentions
2- ⚡ Weekly Recap: AI Goes Rogue, Metabase 0-Day, MCP Supply-Chain Attacks, and Router BackdoorsThe Hacker News · Aug 10, 2026
- AWS, Google, and Vercel Agent Flaws Let Attackers Trigger Tools Without Running the ModelThe Hacker News · Aug 6, 2026