CVE-2026-5709: AWS Research and Engineering Studio (RES) · OS Command Injection
Affects AWS Research and Engineering Studio (RES)Source CVE Database V5
Not known to be exploited · CVSS 8.8 High · patch available : patch AWS Research and Engineering Studio (RES) soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AWSResearch and Engineering Studio (RES) | Affected
| Fixed in– |
GitHubaws/respkg:github/aws/resOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
AWS manages remediation for this cloud-hosted service. Users should upgrade to RES version 2026.03 or apply the corresponding mitigation patch provided by AWS to their existing environment. Check the AWS security bulletin at https://aws.amazon.com/security/security-bulletins/2026-014-aws/ for the latest remediation guidance and patch availability.
Description
CVE-2026-5709 is a high-severity OS command injection vulnerability in AWS Research and Engineering Studio (RES) versions 2024.10 through 2025.12.01. It arises from unsanitized input in the FileBrowser API, allowing a remote authenticated user to execute arbitrary commands on the cluster-manager EC2 instance. AWS has released a fix in RES version 2026.03 and provides a mitigation patch for existing environments. This vulnerability requires authenticated access and does not have known exploits in the wild at this time.