Deserialization of untrusted data in the Gremlin graph-import path in Amazon Neptune

Summary

CVECVE-2026-110812
StatePUBLISHED
AssignerAMZN
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-15 17:17:16 UTC
Updated2026-10-16 19:17:03 UTC
DescriptionDeserialization 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)

Risk And Classification

Primary CVSS: v4.0 9.4 CRITICAL from ff89ba41-3aa1-4d27-914a-91399e9639e5

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003650000 probability, percentile 0.288210000 (date 2026-10-16)

Problem Types: CWE-502 | CWE-918 | CWE-502 CWE-502 Deserialization of untrusted data | CWE-918 CWE-918 Server-Side request forgery (SSRF)


VersionSourceTypeScoreSeverityVector
4.0ff89ba41-3aa1-4d27-914a-91399e9639e5Secondary9.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS9.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
3.1ff89ba41-3aa1-4d27-914a-91399e9639e5Secondary9.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNACVSS9.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AWS Amazon Neptune Engine affected 1.2.0.0 1.5.0.0 custom Not specified
CNA AWS Amazon Neptune Engine unaffected 1.4.7.1 custom Not specified
CNA AWS Amazon Neptune Engine unaffected 1.4.8.1 custom Not specified

References

ReferenceSourceLinkTags
docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.7.1.html ff89ba41-3aa1-4d27-914a-91399e9639e5 docs.aws.amazon.com
aws.amazon.com/security/security-bulletins/2026-136-aws ff89ba41-3aa1-4d27-914a-91399e9639e5 aws.amazon.com
docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.5.0.0.html ff89ba41-3aa1-4d27-914a-91399e9639e5 docs.aws.amazon.com
docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.8.1.html ff89ba41-3aa1-4d27-914a-91399e9639e5 docs.aws.amazon.com
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