CVE-2026-123810 Dynatrace MCP Server: DQL injection via parameters not documented as DQL
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-123810?
CVE-2026-123810 is a medium-severity vulnerability in dynatrace-oss dynatrace-mcp, published on 9 Nov 2026.
Official description
Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 2.1.1, several read capabilities interpolate caller-controlled values into DQL without sufficient validation or escaping. The src/capabilities/find-monitored-entity-by-name.ts capability embeds entityNames in string searches, src/capabilities/list-problems.ts, src/capabilities/list-vulnerabilities.ts, and src/capabilities/list-exceptions.ts embed timeframe values, and src/capabilities/get-events-for-cluster.ts embeds timeframe, clusterId, and kubernetesEntityId. Crafted values can close string literals, append pipeline stages, or comment out the remaining intended query, allowing callers to bypass field selection, time-window, and result-display limits in tools marked readOnlyHint. The issue does not grant data access beyond the configured token's existing execute_dql capability, but it breaks the narrower auto-approved tool contract. This issue is fixed in version 2.1.1.
Weakness: CWE-89
Which versions are affected by CVE-2026-123810?
1 open source package ship an affected version, including @dynatrace-oss/dynatrace-mcp-server.
| Package | Affected | Fixed in |
|---|---|---|
@dynatrace-oss/dynatrace-mcp-server npm | All versions | 2.1.1 |
How do I fix CVE-2026-123810?
Upgrade @dynatrace-oss/dynatrace-mcp-server to 2.1.1 or later.
Is CVE-2026-123810 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-123810 exists.
Sources
Also known as GHSA-pqh8-p93p-2rx7.