EUVD-2026-19549
GHSA-fpff-pjfw-gfg7
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Tags
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.
Analysis
Privilege escalation in AWS Research and Engineering Studio (RES) versions prior to 2026.03 allows authenticated remote attackers to assume virtual desktop host instance profile permissions and interact with AWS resources via crafted API requests. The vulnerability stems from unsanitized user-modifiable attributes in session creation. …
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Remediation
Within 24 hours: Identify all deployments of AWS RES and document current versions in use. Within 7 days: Upgrade all instances to version 2026.03 or later per AWS security advisory; prioritize environments with access to sensitive AWS resources. …
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External POC / Exploit Code
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