CVE-2026-100308 PUBLISHED

GluonTS arbitrary command execution during model deserialization

Assigner: AMZN
Reserved: 25.09.2026 Published: 29.09.2026 Updated: 29.09.2026

Deserialization of untrusted data in the model loading component in Amazon GluonTS before 0.17.0 might allow context-dependent attackers to execute arbitrary operating system commands with the privileges of the loading process via a crafted serialized model directory.

To remediate this issue, users should upgrade to version 0.17.0 or later.

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	AWS
Product	gluonts
Versions	Default: unaffected affected from 0 to 0.17.0 (excl.)

Credits

Hasp Labs finder

References

Problem Types

CWE-502 Deserialization of untrusted data CWE
CWE-470 Use of Externally-Controlled input to select classes or code ('unsafe reflection') CWE

Impacts

CAPEC-586 Object Injection
CAPEC-138 Reflection Injection