CVE-2026-33380 — SQL Expressions Arbitrary File Access

title: CVE-2026-33380 - SQL Expressions Arbitrary File Read via URI
id: scw-2026-05-13-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-33380 by sending requests to the Grafana API endpoint '/api/datasources/proxy/' with a SQL query in the URI that attempts to read a file using the SELECT FILE() function. This is indicative of an attacker trying to access arbitrary files on the server.
author: SCW Feed Engine (AI-generated)
date: 2026-05-13
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-33380/
tags:
  - attack.discovery
  - attack.t1083
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/api/datasources/proxy/'
      cs-uri-query|contains:
          - 'SELECT FILE(' 
      cs-uri-query|contains:
          - ')'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse