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)
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://aws.amazon.com/security/security-bulletins/2026-136-aws/
ff89ba41-3aa1-4d27-914a-91399e9639e5
https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.7.1.ht…
ff89ba41-3aa1-4d27-914a-91399e9639e5
https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.8.1.ht…
ff89ba41-3aa1-4d27-914a-91399e9639e5
https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.5.0.0.ht…
ff89ba41-3aa1-4d27-914a-91399e9639e5