---
title: "CVE-2026-97662: AWS security-agent-mcp-server - Arbitrary File Write"
description: "AWS security-agent-mcp-server < 0.2.0 contains a file write vulnerability caused by argument injection in the diff scan operation, letting context-dependent threat actors create, overwrite, or truncate arbitrary files outside the intended workspace, exploit requires crafted reference value."
url: https://panop.io/threat-heartbeat/CVE-2026-97662/
---

# CVE-2026-97662 AWS security-agent-mcp-server - Arbitrary File Write

AWS security-agent-mcp-server < 0.2.0 contains a file write vulnerability caused by argument injection in the diff scan operation, letting context-dependent threat actors create, overwrite, or truncate arbitrary files outside the intended workspace, exploit requires crafted reference value.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.14% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-97662)

## Details

Type

Arbitrary File Write

Impact

File System Write, Data Tampering

CVSS vector

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

Published

1 October 2026

Updated

15 October 2026

Weakness

[CWE-73](https://cwe.mitre.org/data/definitions/73.html)

## Vendor fix

Upgrade to version 0.2.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-97662](https://nvd.nist.gov/vuln/detail/CVE-2026-97662)
- [https://aws.amazon.com/security/security-bulletins/2026-121-aws/](https://aws.amazon.com/security/security-bulletins/2026-121-aws/)
- [https://pypi.org/project/awslabs.security-agent-mcp-server/0.2.0/](https://pypi.org/project/awslabs.security-agent-mcp-server/0.2.0/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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