CVE-2026-122193: AWS trusted-remote-execution · OS Command Injection
Affects AWS trusted-remote-executionSource CVE Database V5
Not known to be exploited · CVSS 9.9 Critical · patch available : patch AWS trusted-remote-execution as a priority.
Data as of 6 Nov 2026, 17:32 UTC
Thin evidence
One scorer or none| CNA (AMZN) | CVSS 3.1 | 9.9 |
|---|---|---|
| CNA (AMZN) | CVSS 4.0 | 9.3 |
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 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 6 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AWStrusted-remote-execution | Affected
| Fixed in– |
AI-suggested
AWS manages remediation for this cloud-hosted service. Users should delete any Rex-RO and Rex-RW SSM documents created from the example provisioning script in every account and region where they were deployed. This action mitigates the vulnerability by removing the exploitable documents. Since a patch is available and AWS is responsible for the cloud service, no further user action is required beyond deleting these documents.
Description
CVE-2026-122193 is a critical OS command injection vulnerability in the example SSM document provisioning script of AWS Trusted Remote Execution (REX) prior to 2026-07-28. An authenticated remote user with permission to invoke the Rex-RO or Rex-RW SSM documents can execute arbitrary commands as root on the managed instance, bypassing Cedar policy enforcement. AWS recommends deleting any Rex-RO and Rex-RW SSM documents created from the example script in all accounts and regions where they were run to remediate the issue.