CVE-2026-18733 PUBLISHED

Prompt injection bypasses shell tool consent gate in Strands Agents Tools

Assigner: AMZN
Reserved: 03.08.2026 Published: 03.08.2026 Updated: 03.08.2026

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 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	AWS
Product	strands-agents-tools
Versions	Default: unaffected affected from 0 to 0.8.0 (excl.)

CVE-2026-18733 PUBLISHED

Prompt injection bypasses shell tool consent gate in Strands Agents Tools

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Product Status

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