CVE-2026-110812

Critical

Description

Deserialization of untrusted data in the Gremlin graph data import component in Amazon Neptune engine might allow an authenticated remote actor with standard database permissions to execute arbitrary code and access internal service credentials. To remediate this issue, users not enrolled in auto-update should upgrade to Amazon Neptune engine version 1.5.0.0.(Backports to 1.4.8.1 and 1.4.7.1)

SeverityCritical

CVSS9.9

Exploit probability—

ProductAmazon Neptune Engine

PublishedOct 15, 2026

First seenOct 15, 2026

Weakness typeCWE-502Deserialization of untrusted data CWE-918Server-side request forgery (SSRF)

How to fix

Update

AWS Amazon Neptune Engine1.5.0.0 or later

Patches

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-136-aws/

Affected products

Product	Affected versions	Fixed in
AWS Amazon Neptune Engine	1.2.0.0 ≤ v < 1.5.0.0	1.5.0.0

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