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.
Fix
Public exploits 1
- huzjie/aegisagent PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Vendor advisories in the News 1
- CVE-2026-18830 - Issue with Amazon Bedrock AgentCore harness – Insufficient Input Validation AWS Security Bulletins · 2026-10-21
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.6NVD modified 2026-10-11 21:16
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.