CVE-2026-5707: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in AWS Research and Engineering Studio (RES)
Bulletin ID: 2026-014-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 2026/04/06 14:00 PM PDT Description: Research and Engineering Studio (RES) on AWS is an open source, web portal design for administrators to create and manage secure cloud-based research and engineering environments. We have identified the following issues with the AWS Research and Engineering Studio (RES). CVE-2026-5707: Unsanitized input in an OS Command in the virtual desktop session name handling in AWS Research and Engineering Studio (RES) version 2025.03 through 2025.12.01 might allow a remote authenticated actor to execute arbitrary commands as root on the virtual desktop host via a crafted session name. CVE-2026-5708: Improper control of user-modifiable attributes in the session creation component in AWS Research and Engineering Studio (RES) before version 2026.03 might allow an authenticated remote user to escalate privileges and assume the Virtual Desktop Host instance profile permissions and interact with other AWS resources and services via a crafted API request. CVE-2026-5709: Unsanitized input in the FileBrowser API in AWS Research and Engineering Studio (RES) version 2024.10 through 2025.12.01 might allow a remote authenticated actor to execute arbitrary commands on the cluster-manager EC2 instance via crafted input when using the FileBrowser functionality. Impacted versions: <= 2025.12.01 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-5707) affects AWS Research and Engineering Studio (RES) versions from 2025.03 to 2025.12.01. It arises from improper neutralization of special elements in OS commands (CWE-78), specifically in the handling of the virtual desktop session name. This flaw enables a remote authenticated user to execute arbitrary OS commands with root privileges on the virtual desktop host. AWS has acknowledged the issue and released a patch in version 2026.03. The service is cloud-hosted, and AWS manages remediation server-side.
Potential Impact
Successful exploitation allows a remote authenticated user to execute arbitrary commands as root on the virtual desktop host, potentially leading to full system compromise, including confidentiality, integrity, and availability impacts. No active exploitation has been reported so far.
Mitigation Recommendations
AWS has released a patch in RES version 2026.03 that addresses this vulnerability. Since RES is a cloud service, AWS manages the remediation on their side. Users should verify that their RES instances are updated to version 2026.03 or later. Check the AWS security bulletin at https://aws.amazon.com/security/security-bulletins/2026-014-aws/ for the latest remediation status and guidance.
CVE-2026-5707: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in AWS Research and Engineering Studio (RES)
Description
Bulletin ID: 2026-014-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 2026/04/06 14:00 PM PDT Description: Research and Engineering Studio (RES) on AWS is an open source, web portal design for administrators to create and manage secure cloud-based research and engineering environments. We have identified the following issues with the AWS Research and Engineering Studio (RES). CVE-2026-5707: Unsanitized input in an OS Command in the virtual desktop session name handling in AWS Research and Engineering Studio (RES) version 2025.03 through 2025.12.01 might allow a remote authenticated actor to execute arbitrary commands as root on the virtual desktop host via a crafted session name. CVE-2026-5708: Improper control of user-modifiable attributes in the session creation component in AWS Research and Engineering Studio (RES) before version 2026.03 might allow an authenticated remote user to escalate privileges and assume the Virtual Desktop Host instance profile permissions and interact with other AWS resources and services via a crafted API request. CVE-2026-5709: Unsanitized input in the FileBrowser API in AWS Research and Engineering Studio (RES) version 2024.10 through 2025.12.01 might allow a remote authenticated actor to execute arbitrary commands on the cluster-manager EC2 instance via crafted input when using the FileBrowser functionality. Impacted versions: <= 2025.12.01 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
CVSS v3.1
Score 8.8high
Affected software
AWS
Research and Engineering Studio (RES)
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-5707) affects AWS Research and Engineering Studio (RES) versions from 2025.03 to 2025.12.01. It arises from improper neutralization of special elements in OS commands (CWE-78), specifically in the handling of the virtual desktop session name. This flaw enables a remote authenticated user to execute arbitrary OS commands with root privileges on the virtual desktop host. AWS has acknowledged the issue and released a patch in version 2026.03. The service is cloud-hosted, and AWS manages remediation server-side.
Potential Impact
Successful exploitation allows a remote authenticated user to execute arbitrary commands as root on the virtual desktop host, potentially leading to full system compromise, including confidentiality, integrity, and availability impacts. No active exploitation has been reported so far.
Mitigation Recommendations
AWS has released a patch in RES version 2026.03 that addresses this vulnerability. Since RES is a cloud service, AWS manages the remediation on their side. Users should verify that their RES instances are updated to version 2026.03 or later. Check the AWS security bulletin at https://aws.amazon.com/security/security-bulletins/2026-014-aws/ for the latest remediation status and guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMZN
- Date Reserved
- 2026-04-06T16:11:18.532Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://aws.amazon.com/security/security-bulletins/2026-014-aws/","vendor":"AWS"}]
Threat ID: 69d4297c0a160ebd92e00947
Added to database: 04/06/2026, 21:45:32 UTC
Last enriched: 06/05/2026, 19:27:06 UTC
Last updated: 09/14/2026, 22:01:35 UTC
Views: 152
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