CVE-2026-5708

Improper Control of User-Modifiable Attributes in RES CreateSession API

State: Published
Severity: 8.7 High
Published: Apr 6, 2026
Updated: Apr 7, 2026
Reserved: Apr 6, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	AMZN
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	AMZN

Weaknesses

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

Affected Products

Product	Versions
Research and Engineering Studio (RES)AWS	2023.11 through 2025.12.01Affected

References

https://github.com/aws/res/releases/tag/2026.03release-notes
https://github.com/aws/res/issues/149patch
https://aws.amazon.com/security/security-bulletins/2026-014-aws/vendor-advisory

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