CVE-2026-18733
Received Received - Intake

Prompt Injection in Amazon Strands Agents Tools

Vulnerability report for CVE-2026-18733, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-03

Last updated on: 2026-08-03

Assigner: AMZN

Description

A prompt injection vulnerability in the shell tool in Amazon Strands Agents Tools before 0.8.0 might allow remote actors to execute arbitrary operating system commands on the agent's host via a crafted prompt that sets the non_interactive parameter to true, bypassing the human consent gate. To remediate this issue, users should upgrade to version 0.8.0.

CVSS Scores

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Meta Information

Published
2026-08-03
Last Modified
2026-08-03
Generated
2026-08-04
AI Q&A
2026-08-04
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
amazon strands_agents_tools 0.8.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This is a prompt injection vulnerability in Amazon Strands Agents Tools before version 0.8.0. It allows remote attackers to execute arbitrary operating system commands on the agent's host system by manipulating a crafted prompt to set the non_interactive parameter to true, bypassing required human consent.

Detection Guidance

This vulnerability can be detected by checking the version of Amazon Strands Agents Tools. If the version is below 0.8.0, the system is vulnerable. Use commands like 'pip show amazon-strands-agents-tools' or 'pip list | grep strands' to check the installed version.

Impact Analysis

An attacker could gain control of the affected system, execute malicious commands, steal data, or perform unauthorized actions. This could lead to data breaches, system compromise, or further network infiltration depending on the system's role and permissions.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection principles or HIPAA's security requirements for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Upgrade Amazon Strands Agents Tools to version 0.8.0 or later to remediate the prompt injection vulnerability.

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