CVE-2026-110812 Amazon Neptune - Insecure Deserialization

Amazon Neptune engine contains an insecure deserialization vulnerability in the Gremlin graph data import component, letting authenticated remote actors with standard database permissions execute arbitrary code and access internal credentials.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
15 October 2026
Updated
16 October 2026
Weakness
CWE-502

Vendor fix

Upgrade to Amazon Neptune engine version 1.5.0.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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