CVE-2026-40979 — In Spring AI, having access to a shared environment can
CVE-2026-40979 — In Spring AI, having access to a shared environment can expose the ONNX model used by the application. Affected versions: Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)
What This Means For You
- If your environment is affected by CWE-377, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-40979 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Spring AI ONNX Model Exposure via Shared Environment - CVE-2026-40979
Sigma YAML — free preview
title: Spring AI ONNX Model Exposure via Shared Environment - CVE-2026-40979
id: scw-2026-04-28-ai-1
status: experimental
level: medium
description: |
Detects the execution of Java processes that appear to be interacting with ONNX models, specifically targeting the Spring AI library's known vulnerability (CVE-2026-40979). This rule aims to identify potential exploitation attempts where an attacker might try to access or manipulate the ONNX model in a shared environment.
author: SCW Feed Engine (AI-generated)
date: 2026-04-28
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-40979/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: process_creation
detection:
selection:
Image|contains:
- 'java.exe'
CommandLine|contains:
- 'spring.ai.onnx'
- 'model.onnx'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-40979 | vulnerability | CVE-2026-40979 |
| CWE-377 | weakness | CWE-377 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 28, 2026 at 12:16 UTC |
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