Answer in brief
CVE-2026-89039 records a Medium severity (CVSS 6.5) vulnerability in Arbitrary file read via the convert_playwright_script prompt in mcp-k6. The current sources do not mark it as known exploited. The current feed maps Grafana/mcp-k6 (generic), Grafana/Mcp K6 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Grafana/mcp-k6 (generic), Grafana/Mcp K6 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Grafana/mcp-k6generic | >=0.3.0 <0.7.0 | 0.7.0 |
| Grafana/Mcp K6generic | 0.3.0 | Not reported |
Published upstream
Oct 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 5, 2026
A caller who can invoke the convert_playwright_script prompt in mcp-k6 can pass a bare file path as the playwright_script argument and receive the contents of any file readable by the user running the server, including SSH keys and cloud credentials in that user's home directory (path traversal). The working-directory restriction applied to '@'-prefixed paths can also be bypassed with a symbolic link inside the working directory that points outside it.
Quoted source text, attributed separately from HOL analysis.