CVE-2026-5708 Improper Control of User-Modifiable Attributes in RES CreateSession API
Authenticated users can escalate privileges to assume host instance profiles and access AWS resources via crafted API requests in RES.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5708?
CVE-2026-5708 is a high-severity vulnerability in AWS Research and Engineering Studio (RES), published on 6 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-915
Which versions are affected by CVE-2026-5708?
It affects 1 product.
Products include Amazon Research and Engineering Studio.
How do I fix CVE-2026-5708?
No fix has been published for CVE-2026-5708 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5708 being exploited?
There is no known exploitation of CVE-2026-5708 in the wild and no public exploit code.
Other vulnerabilities in AWS Research and Engineering Studio (RES)
Sources
Also known as GHSA-fpff-pjfw-gfg7.