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EUVD-2026-233376

2026-10-03T04:05:15.221669+00:00

EUVD-2026-233376

fkie_cve-2022-46156

2026-10-03T04:05:15.221706+00:00

The Synthetic Monitoring Agent for Grafana's Synthetic Monitoring application provides probe functionality and executes network checks for monitoring remote targets. Users running the Synthetic Monitoring agent prior to version 0.12.0 in their local network are impacted. The authentication token used to communicate with the Synthetic Monitoring API is exposed through a debugging endpoint. This token can be used to retrieve the Synthetic Monitoring checks created by the user and assigned to the agent identified with that token. The Synthetic Monitoring API will reject connections from already-connected agents, so access to the token does not guarantee access to the checks. Version 0.12.0 contains a fix. Users are advised to rotate the agent tokens. After upgrading to version v0.12.0 or later, it's recommended that users of distribution packages review the configuration stored in `/etc/synthetic-monitoring/synthetic-monitoring-agent.conf`, specifically the `API_TOKEN` variable which has been renamed to `SM_AGENT_API_TOKEN`. As a workaround for previous versions, it's recommended that users review the agent settings and set the HTTP listening address in a manner that limits the exposure, for example, localhost or a non-routed network, by using the command line parameter `-listen-address`, e.g. `-listen-address localhost:4050`.

GHSA-9j4f-f249-q5w8 — Default installation of `synthetic-monitoring-agent` exposes sensitive information

2026-10-03T04:05:15.221748+00:00

Affected: Go: github.com/grafana/synthetic-monitoring-agent/cmd/synthetic-monitoring-agent, Go: github.com/grafana/synthetic-monitoring-agent

### Impact

Users running the Synthetic Monitoring agent in their local network are impacted. The authentication token used to communicate with the Synthetic Monitoring API is exposed thru a debugging endpoint. This token can be used to retrieve the Synthetic Monitoring checks created by the user and assigned to the agent identified with that token. The Synthetic Monitoring API will reject connections from already-connected agents, so access to the token does not guarantee access to the checks.

### Patches

Fixed version is v0.12.0

Users are advised to rotate the agent tokens.

After upgrading to version v0.12.0 or later, it's recommended that user's of distribution packages (e.g. Debian or RedHat and their derivatives) review the configuration stored in `/etc/synthetic-monitoring/synthetic-monitoring-agent.conf`, specifically the `API_TOKEN` variable which has been renamed to `SM_AGENT_API_TOKEN`.

### Workarounds

With all previous versions, it's recommended that users review the agent settings and set the HTTP listening address in a manner that limits the exposure, for example, localhost or a non-routed network, by using the command line parameter `-listen-address`, e.g. `-listen-address localhost:4050`.

### References

The following changes have been made to address this issue:

- [Disable debug endpoint by default](https://github.com/grafana/synthetic-monitoring-agent/pull/373) - [Allow retrieving the token from the environment](https://github.com/grafana/synthetic-m…

gsd-2022-46156

2026-10-03T04:05:15.221801+00:00

gsd-2022-46156

WID-SEC-W-2022-2204 — Grafana: Schwachstelle ermöglicht Offenlegung von Informationen

2026-10-03T04:05:15.221815+00:00

Ein anonymer Angreifer aus dem angrenzenden Netzbereich kann eine Schwachstelle in Grafana ausnutzen, um Informationen offenzulegen.