SSRF in AWS Amazon Neptune Engine

CVE-2026-110812

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)

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-110812?
CVE-2026-110812 is a critical-severity vulnerability in AWS Amazon Neptune Engine, classified under Deserialization of Untrusted Data. CVSS score: 9.9/10. Published 2026-10-15.
How severe is CVE-2026-110812?
Critical severity. CVSS v3 base score is 9.9 out of 10.