AWS Research and Engineering Studio Flaw Allows Privilege Escalation

/HIGH
SCW vulnerabilitycvecloud
AWS Research and Engineering Studio Flaw Allows Privilege Escalation

A critical vulnerability, tracked as CVE-2026-5708, has been identified in AWS Research and Engineering Studio (RES). According to CVE Notify, prior to version 2026.03, the session creation component in RES suffered from unsanitized control of user-modifiable attributes. This oversight could allow an authenticated remote user to significantly escalate privileges.

The flaw enables an attacker to assume the virtual desktop host instance profile permissions. This means a crafted API request could grant them unauthorized access and interaction capabilities with other AWS resources and services. This is a pretty big deal, as it could open the door to lateral movement and data exfiltration within an AWS environment.

AWS has released version 2026.03 to address this issue. Users are strongly advised to upgrade their RES environments immediately or apply the corresponding mitigation patch to close this critical security gap.

What This Means For You

  • Prioritize patching AWS Research and Engineering Studio (RES) to version 2026.03 to prevent authenticated users from escalating privileges and accessing broader AWS resources.

Related ATT&CK Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation T1537 Cloud Service Token Credential Access T1078.004 Cloud Accounts Initial Access

Indicators of Compromise

IDTypeIndicator
CVE-2026-5708 Vulnerability CVE-2026-5708

By Shimi's Cyber World Editorial

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