CVE-2026-122193: OS command injection in the example SSM documents in Trusted Remote Execution (REX)
AWS · trusted-remote-execution
Vendor fix available · Affected: AWS trusted-remote-execution · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 76% of scored CVEs
DescriptionCVE.org
OS command injection in the example SSM document provisioning script in Trusted Remote Execution (REX) before 2026-07-28 might allow an authenticated remote user who is permitted to invoke the Rex-RO or Rex-RW SSM document to execute arbitrary commands as root on the managed instance, bypassing Cedar policy enforcement. To remediate this issue, users should delete any Rex-RO and Rex-RW SSM documents created from the example script, in each account and Region where it was run.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- AWS · trusted-remote-executionVersions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- AWS
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-122193 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.