CVE-2026-85654 Code injection in the CDK generator in Amazon awslabs.dynamodb-mcp-server
Attacker can execute arbitrary code on the host by crafting malicious table or attribute names in a data model file processed by the CDK generator.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85654?
CVE-2026-85654 is a high-severity code injection vulnerability in Amazon awslabs.dynamodb-mcp-server, published on 4 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Improper neutralization of special elements used in a template engine in the CDK generator in Amazon awslabs.dynamodb-mcp-server before 2.1.6 might allow a context-dependent actor to execute arbitrary code on the host that deploys the generated application via crafted table, index, or attribute names in a data model file.
Weakness: CWE-1336
Which versions are affected by CVE-2026-85654?
How do I fix CVE-2026-85654?
No fix has been published for CVE-2026-85654 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-85654 being exploited?
There is no known exploitation of CVE-2026-85654 in the wild and no public exploit code.
Sources
Also known as GHSA-hh4r-pcm9-jh93.