mediumCVSS 4.3Vulnerability

GHSA-pqh8-p93p-2rx7

### Summary A DQL injection vulnerability in several read tools lets a caller bypass the tools' documented field-scope, time-window, and display caps by injecting DQL pipeline stages through parameters typed as identifiers. ### Details Several tools interpolate caller-supplied parameters directly into DQL query strings without quoting or escaping. The affected parameters are documented in their Zod schemas as identifiers or constrained shorthand (such as `"24h"` timeframe values or Kubernetes UIDs) - not as DQL expressions. The interpolation lets a caller break out of string literals, append arbitrary DQL pipeline stages, and use `//` line comments (documented in the [Dynatrace DQL language reference](https://docs.dynatrace.com/docs/discover-dynatrace/platform/grail/dynatrace-query-language/dql-reference)) to discard the rest of the intended query. The marginal-privilege ceiling is low because the operator's token also exposes `execute_dql` with full DQL access. What the injection grants is the ability to bypass the affected tools' contract: the `readOnlyHint: true` annotation that MCP clients may treat as a signal to auto-approve, the per-tool field selection (e.g., `| fields id, name, type`), the display caps (`maxProblemsToDisplay`, `maxVulnerabilitiesToDisplay`, `maxEntitiesToDisplay`), and the time-window bounds. The vulnerable interpolations are: | File | Line | Parameter | Interpolation | |------|------|-----------|---------------| | `src/capabilities/find-monitored-entity-by-name.ts` | 23 | `entityNames[]` | `` `fetch ${entityType} \| search "*${entityNames.join('*" OR "*')}*" \| fieldsAdd entity.type \| expand tags` `` | | `src/capabilities/find-monitored-entity-by-name.ts` | 41 | `entityNames[]` | `` `smartscapeNodes "*" \| search "*${entityNames.join('*" OR "*')}*" \| fields id, name, type` `` | | `src/capabilities/list-problems.ts` | 27 | `timeframe` | `` `fetch dt.davis.problems, from: now()-${timeframe}, to: now()` `` | | `src/capabilities/list-vul

Properties

ghsa_id
GHSA-pqh8-p93p-2rx7
severity
medium
summary
@dynatrace-oss/dynatrace-mcp-server has a DQL injection via parameters not documented as DQL
cvss_score
4.3
cve_id
GHSA-pqh8-p93p-2rx7
cvss_vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
is_ghsa_only
true
ghsa_published
2026-07-31T15:56:12Z
source_url
https://github.com/advisories/GHSA-pqh8-p93p-2rx7
ghsa_updated
2026-07-31T15:56:16Z

Related Entities (4)

REPORTED_BY (1)

[Source]GitHub Advisory Database

VULNERABLE_TO (1)

[Software]npm/@dynatrace-oss/dynatrace-mcp-server

AFFECTS (1)

[Software]npm/@dynatrace-oss/dynatrace-mcp-server

HAS_WEAKNESS (1)

[Weakness]Improper Neutralization of Special Elements in Data Query Logic

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GHSA-pqh8-p93p-2rx7 (CVSS 4.3) — Ninja Signal Threat Intelligence | Ninja Signal