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CVE-2026-19516 is a server-side request forgery vulnerability affecting Grafana MCP Server and mcp-grafana versions through 1.0.0. The grafana_api_request tool accepts a caller-supplied X-Grafana-URL header that controls the destination of an outbound request, while also allowing caller control over the HTTP method, path, and body. The implementation does not constrain destinations to the configured Grafana instance. Consequently, a caller can cause the MCP server to issue requests to internal, loopback, and link-local services and return their responses. A prior fix for CVE-2026-15583 prevented the configured Grafana service-account token from being forwarded to unintended hosts but did not restrict the outbound destination.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical server-side request forgery vulnerability in Grafana MCP's grafana_api_request tool. An unauthenticated reachable caller could control the outbound destination through the X-Grafana-URL value, causing the MCP server to proxy method-capable requests to internal services and return their responses.
A critical CVSS 9.1 server-side request forgery vulnerability in the Grafana MCP server's grafana_api_request tool. An attacker could control outbound HTTP request methods, paths, and bodies through the X-Grafana-URL header, making the MCP server a readable, method-capable proxy to internal services. In certain deployments, this enabled retrieval of AWS IMDSv2 cloud credentials.
A vulnerability identified as CVE-2026-19516 affecting Grafana Alloy versions 1.18.1 and earlier; the content recommends updating the product.
A vulnerability affecting Grafana Alloy versions 1.18.1 and earlier.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.