CVE-2026-77810 Code Injection via Gremlin Query Passthrough in Amazon Athena Neptune Connector
Attackers with Neptune access via Athena can inject code to execute arbitrary commands and escalate privileges within the connector's Lambda environment.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77810?
CVE-2026-77810 is a critical code injection vulnerability in AWS Athena Federated Query Neptune Connector, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In the Neptune connector, a user with access to Neptune through Athena Federated Query could gain access to properties in the Lambda supplying the compute for the connector. To remediate this issue, users should upgrade to aws-athena-query-federation v2026.30.1 or later.
Weakness: CWE-95
Which versions are affected by CVE-2026-77810?
How do I fix CVE-2026-77810?
No fix has been published for CVE-2026-77810 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-2026-77810 being exploited?
There is no known exploitation of CVE-2026-77810 in the wild and no public exploit code.
Sources
Also known as GHSA-v7c2-5wfg-qg44.