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PatchSiren cyber security CVE debrief

CVE-2026-110812 AWS CVE debrief

CVE-2026-110812 is a critical vulnerability in Amazon Neptune Engine's Gremlin graph-import path, allowing authenticated remote actors with standard database permissions to potentially execute arbitrary code and access internal service credentials. Users not enrolled in auto-update should upgrade to Amazon Neptune engine version 1.5.0.0, with backports to 1.4.8.1 and 1.4.7.1.

Vendor
AWS
Product
Amazon Neptune Engine
CVSS
CRITICAL 9.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-15
Original CVE updated
2026-10-16
Advisory published
2026-10-15
Advisory updated
2026-10-16

Who should care

Database administrators, security teams, and developers using Amazon Neptune Engine should assess exposure and prioritize upgrading to patched versions to prevent potential arbitrary code execution and access to internal service credentials. This includes reviewing current deployments, verifying affected versions, and coordinating with relevant stakeholders to ensure timely remediation.

Why it matters

CVE-2026-110812 is a critical vulnerability in Amazon Neptune Engine's Gremlin graph-import path. Database administrators and security teams should assess exposure and prioritize upgrading to patched versions to prevent potential arbitrary code execution and access to internal service credentials.

  • Potential execution of arbitrary code by authenticated remote actors
  • Possible access to internal service credentials
  • Need for verification of affected versions and scope
  • Priority for upgrading to patched versions

Technical summary

The vulnerability is caused by deserialization of untrusted data in the Gremlin graph-import path in Amazon Neptune Engine. An authenticated remote actor with standard database permissions might be able to execute arbitrary code and access internal service credentials. This issue requires immediate attention as it could lead to potential arbitrary code execution and access to internal service credentials. Users not enrolled in auto-update should upgrade to Amazon Neptune engine version 1.5.0.0, with backports to 1.4.8.1 and 1.4.7.1. The CVE record and source item provide details on the vulnerability and affected versions.

Defensive priority

High priority for upgrading to patched versions

Recommended defensive actions

  • Upgrade to Amazon Neptune engine version 1.5.0.0 or later
  • Apply backports to versions 1.4.8.1 or 1.4.7.1 if auto-update is not enabled
  • Review and update database permissions for authenticated remote actors
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the vulnerability and affected versions. However, the scope of affected versions and potential impact require further verification from official sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-110812 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-110812

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-110812 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-110812

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

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

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/110xxx/CVE-2026-110812.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.5.0.0.html

    Supplemental source - patch

  • Source reference

    Unverified legacy reference

    URL: https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.7.1.html

    Supplemental source - patch

  • Source reference

    Unverified legacy reference

    URL: https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.8.1.html

    Supplemental source - patch

  • Source reference

    Unverified legacy reference

    URL: https://aws.amazon.com/security/security-bulletins/2026-136-aws/

    Supplemental source - vendor-advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.