CVE-2026-5708

Improper Control of User-Modifiable Attributes in RES CreateSession API

Assigner: AMZN
Reserved: 06.04.2026 Published: 06.04.2026 Updated: 07.04.2026

Unsanitized control of user-modifiable attributes in the session creation component in AWS Research and Engineering Studio (RES) prior to version 2026.03 could allow an authenticated remote user to escalate privileges, assume the virtual desktop host instance profile permissions, and interact with AWS resources and services via a crafted API request.

To remediate this issue, users are advised to upgrade to RES version 2026.03 or apply the corresponding mitigation patch to their existing environment.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.7

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	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	AWS
Product	Research and Engineering Studio (RES)
Versions	Default: unaffected affected from 2023.11 to 2025.12.01 (incl.)

Vendor

AWS

Product

Research and Engineering Studio (RES)

Versions

Default: unaffected

affected from 2023.11 to 2025.12.01 (incl.)

References

Problem Types

CWE-915 Improperly controlled modification of Dynamically-Determined object attributes CWE

Impacts