CVE-2026-110812 is an issue in Apache TinkerPop related to Gremlin functionality used by Amazon Neptune. The bulletin notes that, under certain conditions, an authenticated principal with Neptune data-plane (query) permissions could submit a request that causes the query engine to process untrusted input unsafely, which could lead to unintended activity within the query engine environment.
CONTEXT AND RISK CONSIDERATIONS
The issue requires an authenticated principal with data-plane access. The AWS bulletin labels the content type as Important (requires attention) and describes a risk where untrusted input could be processed unsafely, potentially enabling unintended activity within the Neptune query engine.
PATCHED VERSIONS AND UPGRADE GUIDANCE
The issue has been addressed in Neptune engine versions 1.4.7.1, 1.4.8.1 and 1.5.0.0. Amazon recommends upgrading the DB cluster to the corresponding patched version for the engine line. If auto minor version upgrades are enabled, the patch will apply during the next maintenance window; manual upgrades should be performed by customers who manage engine versions themselves.
WHAT TO DO NOW (PRACTICAL STEPS)
Check your Neptune engine version and upgrade to one of the patched releases (1.4.7.1, 1.4.8.1, or 1.5.0.0) as appropriate for your engine line. If auto minor version upgrades are enabled, plan for the next maintenance window to apply the patch; otherwise, perform a manual upgrade. As an interim measure, apply least-privilege access and grant Neptune neptune-db (query) permissions only to trusted principals.
NEXT STEPS AND CONTACT
If you have questions or need guidance, email aws-security@amazon.com. Upgrading to the patched Neptune engine versions is the primary remediation recommended by the bulletin. Neptune remains a fully managed graph database service.
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