Template Engine Vulnerability in Amazon Virtual Engineering Workbench
CVE-2026-119085

9.4CRITICAL

Key Information:

Vendor

Aws

Status
Virtual-engineering-workbench
Vendor
CVE Published:
2 November 2026

What is CVE-2026-119085?

The Amazon Virtual Engineering Workbench has a vulnerability that allows improper handling of special elements within its template engine in the publishing component. This flaw can enable a remote authenticated attacker to execute arbitrary code using the publishing Lambda's IAM role permissions. As a result, the attacker could gain unauthorized access to data and resources across multiple tenant projects. The exploitation is facilitated by submitting a crafted CloudFormation template body that includes specific template engine directives via the product versioning API. Users are advised to upgrade to the latest version of the software to mitigate the risks associated with this vulnerability.

Affected Version(s)

virtual-engineering-workbench 0

References

https://github.com/awslabs/virtual-engineering-workbench/...
patch
https://aws.amazon.com/security/security-bulletins/2026-1...
vendor-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CyStack
.