Template injection in awslabs Virtual Engineering Workbench publishing
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1336.
Summary
The publishing component of Amazon Virtual Engineering Workbench (VEW) does not neutralize special elements used in its template engine (CWE-1336). A remote authenticated attacker with low privileges can submit a crafted CloudFormation template body through the product versioning API to run arbitrary code with the permissions of the publishing Lambda's IAM role. This could expose data and resources across all tenant projects.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
Improper neutralization of special elements used in a template engine in the publishing component of Amazon Virtual Engineering Workbench (VEW) could allow a remote authenticated third party to run arbitrary code with the permissions of the publishing Lambda's IAM role. This could allow access to data and resources across all tenant projects. The code is reachable through a crafted CloudFormation template body containing template engine directives submitted through the product versioning API. To remediate this issue, users should redeploy from the latest version of awslabs/virtual-engineering-workbench.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
No affected products listed by the sources yet.
Remediation
The sources list no fixed version for Amazon Virtual Engineering Workbench. Redeploy from the latest version of awslabs/virtual-engineering-workbench to remediate this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-11-02 Threatist record created from CVE-2026-119085
- 2026-11-02 CISA SSVC decision points changed
- 2026-11-02 Alias added: GHSA-rg4p-j9f7-f4gg
- 2026-11-03 1 new reference · CNA
References
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Sources
- CVE-2026-119085 · CVE Program
- CVE-2026-119085 · NVD
- FIRST EPSS
- GHSA-rg4p-j9f7-f4gg · GitHub Advisory Database · CC BY 4.0
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