GHSA-pqh8-p93p-2rx7
MEDIUMGHSA-pqh8-p93p-2rx7 is a medium-severity (CVSS 4.3) vulnerability in @dynatrace-oss/dynatrace-mcp-server. O3 Security confirms whether GHSA-pqh8-p93p-2rx7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
@dynatrace-oss/dynatrace-mcp-server has a DQL injection via parameters not documented as DQL
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
@dynatrace-oss/dynatrace-mcp-servernpmDescription
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) 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-vulnerabilities.ts | 19 | timeframe | `fetch security.events, from: now()-${timeframe}, to: now()` |
src/capabilities/list-exceptions.ts | 11 | timeframe | `fetch user.events, from: now()-${timeframe}, to: now()` |
src/capabilities/get-events-for-cluster.ts | 20 | timeframe | `fetch events, from: now()-${timeframe}, to: now()` |
src/capabilities/get-events-for-cluster.ts | 27 | clusterId, kubernetesEntityId | `| filter k8s.cluster.uid == "${clusterId}" or dt.entity.kubernetes_cluster == "${kubernetesEntityId}"` |
All Zod schemas for these parameters use z.string() or z.array(z.string()) with no pattern validation.
PoC
clusterId - quote-and-comment break-out. With clusterId = 'x" or 1==1 //' the constructed query becomes:
| filter k8s.cluster.uid == "x" or 1==1 //" or dt.entity.kubernetes_cluster == ""
The first " closes the string literal, or 1==1 neutralises the filter to match every row, and // discards the rest of the line including the kubernetesEntityId guard.
entityNames - pipeline-stage injection. With entityNames = ['svc" | fields id, name, tags //'] the constructed smartscape query becomes:
smartscapeNodes "*" | search "*svc" | fields id, name, tags //*" | fields id, name, type
After the // line comment, the effective query is smartscapeNodes "*" | search "*svc" | fields id, name, tags. The original | fields id, name, type stage is suppressed and replaced with the attacker's field selection - the tool returns whatever field set the attacker requests (including ones not in the tool's documented output contract).
timeframe - prefix injection. With timeframe = '30d, to: now() | fieldsAdd internal_secret //' the list-problems query becomes:
fetch dt.davis.problems, from: now()-30d, to: now() | fieldsAdd internal_secret //, to: now()
| filter isNull(dt.davis.is_duplicate) OR not(dt.davis.is_duplicate)
...
A new pipeline stage is injected before the tool's intended | filter, and the rest of the query is commented out.
The server's own verify_dql tool can be used to confirm any specific injection payload parses as valid DQL.
Impact
- A caller (typically via prompt injection of an LLM that has access to the affected tools) can bypass the tools' field-scope, time-window, and display caps.
- The affected tools are annotated
readOnlyHint: true, which some MCP clients treat as a signal to auto-approve. The injection turns a "safe" read tool into an arbitrary-DQL surface. - No new data access beyond what
execute_dqlalready provides - the marginal impact is the auto-approval pathway and the broken tool contract, not privilege escalation.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @dynatrace-oss/dynatrace-mcp-server | all versions | 2.1.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @dynatrace-oss/dynatrace-mcp-server. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update @dynatrace-oss/dynatrace-mcp-server to 2.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pqh8-p93p-2rx7 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-pqh8-p93p-2rx7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-pqh8-p93p-2rx7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-pqh8-p93p-2rx7 in your dependencies?
O3 detects GHSA-pqh8-p93p-2rx7 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.