Loading vulnerability…
CVE-2026-15583 is a confused-deputy server-side request forgery vulnerability in Grafana MCP Server versions through 0.17.1. An unauthenticated remote attacker can supply a crafted X-Grafana-URL request header that causes the server to issue requests to attacker-selected destinations using its own network access and environment-configured Grafana service-account token. The flaw permits token exfiltration to an external destination and SSRF against arbitrary internal services, including cloud metadata endpoints.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This seven-file repository is an operational Python proof of concept for an alleged confused-deputy/credentialed-SSRF issue in Grafana MCP Server through version 0.17.0. The primary file, CVE-2026-15583-Abraxas-Labs.py, launches a threaded HTTP collector and supplies its URL in X-Grafana-URL while requesting unauthenticated MCP endpoints. It submits a JSON-RPC initialize request to POST /mcp and waits for the target to make a token-bearing request to the collector. The expected success condition is receipt of the lab token GHSA15583-WITNESS in an Authorization header, demonstrating exfiltration of GRAFANA_SERVICE_ACCOUNT_TOKEN rather than code execution. Supporting files include a Docker image pin and Compose lab for grafana/mcp-grafana:0.17.0, publishing only 127.0.0.1:18099, plus a Bash launcher. Notably, lab/run.sh invokes poc.py even though the repository's Python PoC is named CVE-2026-15583-Abraxas-Labs.py, so the supplied launcher will require correction or a renamed/copied script. The README also documents port 8088 as a reproduction target while the Compose configuration exposes 18099.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously patched Grafana MCP vulnerability that could allow exfiltration of a Grafana service-account token to an external website through a crafted X-Grafana-URL header.
A previously addressed Grafana-related vulnerability referenced as the incomplete prior fix context for CVE-2026-19516.
A previously fixed related vulnerability whose remediation stopped the configured service-account token from being sent to unintended destinations, but did not address destination restriction itself.
A previously fixed related vulnerability referenced as incomplete remediation context for CVE-2026-19516.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.