CVE-2026-110812
CRITICAL 9.4Deserialization 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)
Severe if exploited (CVSS 9.4), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.4%chance of exploitation in 30 days · 30th percentile
Impact if exploited
9.4CVSS 4.0 · CRITICAL
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-502: Deserialization of untrusted data
- CWE-918: Server-Side request forgery (SSRF)
CVSS vector
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
References and research data (JSON)
All CVSS metrics
- CRITICAL 9.9 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - CRITICAL 9.4 v4.0 · CNA Primary
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 - CRITICAL 9.4 v4.0 · NVD Secondary
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 - CRITICAL 9.9 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
Patches & mitigations
- https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.5.0.0.html CVE record · AMZN · Updated 2026-10-15T18:20:19.757Z
NVD · CVE-2026-110812 · Updated 2026-10-16T19:17:03.750 - https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.7.1.html CVE record · AMZN · Updated 2026-10-15T18:20:19.757Z
NVD · CVE-2026-110812 · Updated 2026-10-16T19:17:03.750 - https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.4.8.1.html CVE record · AMZN · Updated 2026-10-15T18:20:19.757Z
NVD · CVE-2026-110812 · Updated 2026-10-16T19:17:03.750
Advisories
- https://aws.amazon.com/security/security-bulletins/2026-136-aws/ CVE record · AMZN · Updated 2026-10-15T18:20:19.757Z
NVD · CVE-2026-110812 · Updated 2026-10-16T19:17:03.750 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-102193 EUVD · EUVD-2026-102193