CVE-2026-110812

Summary

A critical deserialization vulnerability in Amazon Neptune's Gremlin graph import component allows authenticated attackers to execute arbitrary code and access internal credentials. This represents a severe privilege escalation risk that could lead to full system compromise.

Exploitability

Exploitation requires an authenticated user with standard database permissions, making it moderately difficult but achievable through legitimate database access, with no additional preconditions beyond existing database access.

Blast radius

If exploited, this vulnerability could allow attackers to execute arbitrary code on the Neptune service and access internal service credentials, potentially leading to lateral movement and data exfiltration across the AWS environment.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to Amazon Neptune engine version 1.5.0.0, with backports available to 1.4.8.1 and 1.4.7.1

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.