CVE-2026-100308

GluonTS arbitrary command execution during model deserialization

State: Published
Severity: 8.4 High
Published: Sep 29, 2026
Updated: Sep 30, 2026
Reserved: Sep 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	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	AMZN
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	AMZN

Weaknesses

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

Affected Products

Product	Versions
gluontsAWS	before 0.17.0Affected

References

https://github.com/awslabs/gluonts/releases/tag/v0.17.0patchrelease-notes
https://aws.amazon.com/security/security-bulletins/2026-119-aws/vendor-advisory
https://github.com/awslabs/gluonts/security/advisories/GHSA-64q6-5qv7-cwj9third-party-advisory

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