CVE-2023-27591
Unauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metrics
Description
### Impact An unauthenticated user can retrieve Prometheus metrics from a publicly reachable Miniflux instance where the `METRICS_COLLECTOR` [configuration option](https://miniflux.app/docs/configuration.html#metrics-collector) is enabled and `METRICS_ALLOWED_NETWORKS` is set to `127.0.0.1/8` (the default). ### Patches PR #1745 fixes the problem. Available in Miniflux >= 2.0.43. ### Workarounds Set `METRICS_COLLECTOR` to `false` (default) or run Miniflux behind a trusted reverse-proxy. ### References - https://miniflux.app/docs/configuration.html#metrics-collector - https://miniflux.app/docs/configuration.html#metrics-allowed-networks
How to fix CVE-2023-27591
To remediate CVE-2023-27591, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 2.0.43 or later
Is CVE-2023-27591 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, <= 1.0.46
- from 0, < 2.0.43
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |