High severity · published Sep 29, 2026
CVE-2026-100308
GluonTS arbitrary command execution during model deserialization
7.8
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
gluonts · AWS
before 0.17.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-100308
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-100308
patch
https://github.com/awslabs/gluonts/releases/tag/v0.17.0
vendor-advisory
https://aws.amazon.com/security/security-bulletins/2026-119-aws/
third-party-advisory
https://github.com/awslabs/gluonts/security/advisories/GHSA-64q6-5qv7-cwj9