CVE-2026-5709

High

Description

Unsanitized input in the FileBrowser API in AWS Research and Engineering Studio (RES) version 2024.10 through 2025.12.01 might allow a remote authenticated actor to execute arbitrary commands on the cluster-manager EC2 instance via crafted input when using the FileBrowser functionality. To remediate this issue, users are advised to upgrade to RES version 2026.03 or apply the corresponding mitigation patch to their existing environment.

SeverityHigh

CVSS8.8

Exploit probability—

ProductAmazon Research And Engineering Studio

PublishedApr 6, 2026

First seenApr 6, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

amazon research_and_engineering_studio2026.03 or later

Patches

github.com/aws/res/issues/150

Vendor advisories

Affected products

Product	Affected versions	Fixed in
amazon research_and_engineering_studio	v < 2026.03	2026.03

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