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Findings

CVE-2026-100308

CVE-2026-100308 - GluonTS arbitrary command execution during model deserialization

Published Sep 29, 2026 · Amazon Web Services · evidence confidence high

Bulletin ID: 2026-119-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/29/2026 08:00 AM PDT Description: GluonTS is an open source library for deep learning based time series models. We identified CVE-2026-100308 that allows arbitrary command execution upon deserialization of untrusted model artifacts. 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 t

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-100308 is a unknown public vulnerability record for Amazon Web Services. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Amazon Web Services is in your estate, then compare installed versions with the affected ranges. Affected version ranges have not been ingested yet. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: no CVSS/EPSS yet. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: aws, cve_org. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 29, 2026 · AWS Security Bulletins

    Detected

    Bulletin ID: 2026-119-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/29/2026 08:00 AM PDT Description: GluonTS is an open source library for deep learning based time series models. We identified CVE-2026-100308 that allows arbitrary command execution upon deserialization of untrusted model artifacts. Deserialization of untrusted data in the model loading component

Sources

  • AWS Security BulletinsVendor advisoryCVE-2026-100308

    Bulletin ID: 2026-119-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 09/29/2026 08:00 AM PDT Description: GluonTS is an open source library for deep learning based time series models. We identified CVE-2026-100308 that allows arbitrary command execu

    aws.amazon.com
  • CVE.orgVulnerability recordCVE-2026-100308

    Official CVE identifier

    cve.org
CVE-2026-100308 · ZeroDay Findings