CVE-2026-18733: 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
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-18733
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-187330.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-18733 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for A prompt injection
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalGHSA-5xvg-pmgg-3mxr: Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerabilityghsa · 2026-08-04
- unknownCVE-2026-18733 - Prompt injection bypasses shell tool consent gate in Strands Agents Toolsaws · 2026-08-03
- unknownCVE-2026-18655 - Broker Credential and OAuth Token Disclosure in AWS Labs Amazon MQ MCP Server via Prompt Inje…aws · 2026-08-03
- mediumGHSA-fwjx-9p69-h25h: Oh My Posh: Terminal escape sequence injection via unsanitized prompt segment dataghsa · 2026-07-24
- highCVE-2026-61439: PraisonAI versions before 4.6.78 contain a prompt injection defense misconfiguration where the…nvd · 2026-07-11
- mediumCVE-2026-60086: PraisonAI before 4.6.78 contains a prompt injection defense bypass vulnerability where the inj…nvd · 2026-07-10
More from NVD Recent CVEs
- unknownCVE-2026-70474: Flowise is a drag-and-drop user interface for building customized large language model (LLM) f…2026-08-04
- unknownCVE-2026-70473: Flowise is a drag-and-drop user interface for building customized large language model (LLM) f…2026-08-04
- unknownCVE-2026-70472: Flowise is a drag & drop user interface to build a customized large language model flow. Prior…2026-08-04
- unknownCVE-2026-70471: Flowise is a drag-and-drop user interface for building customized large language model (LLM) f…2026-08-04
- mediumCVE-2026-69704: Atals-Livre contains a SQL injection vulnerability that allows attackers to manipulate databas…2026-08-04