CVE-2023-27591
Unauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metrics
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Miniflux is a feed reader. Prior to version 2.0.43, an unauthenticated user can retrieve Prometheus metrics from a publicly reachable Miniflux instance where the `METRICS_COLLECTOR` configuration option is enabled and `METRICS_ALLOWED_NETWORKS` is set to `127.0.0.1/8` (the default). A patch is available in Miniflux 2.0.43. As a workaround, set `METRICS_COLLECTOR` to `false` (default) or run Miniflux behind a trusted reverse-proxy.
Timeline
ID reserved
By GitHub_M
- 13 days later
· 13 days later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.76% · top 45% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gominiflux.appGHSA-3qjf-qh38-x73v (opens in a new tab)
- Gominiflux.app/v2GHSA-3qjf-qh38-x73v (opens in a new tab)
References (4)
- https://github.com/miniflux/v2/security/advisories/GHSA-3qjf-qh38-x73v (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/miniflux/v2/pull/1745 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/miniflux/v2/releases/tag/2.0.43 (opens in a new tab)x_refsource_MISCx_transferred
- https://miniflux.app/docs/configuration.html#metrics-collector (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3qjf-qh38-x73v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-27591)Record last updated .