CVE-2026-18733

CVE-2026-18733

High · published August 4, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
46.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00572 · 46.6th percentile
Published
2026-08-04T01:16Z
References (3)
https://aws.amazon.com/security/security-bulletins/2026-072-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/strands-agents/tools/security/advisories/GHSA-mqvc-p852-wf8x · ff89ba41-3aa1-4d27-914a-91399e9639e5https://pypi.org/project/strands-agents-tools/0.8.0/ · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 03 AUG 20:33Z
    Prompt injection bypasses shell tool consent gate in Strands Agents Tools
    cvelistv5