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Advisory record · GHSA-3qjf-qh38-x73v

Unauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metrics

CVSS 7.5 HighEPSS 0.0076 · 55th percentile

Published by the GitHub Advisory Database at 2 Apr 2025, 17:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
miniflux.app/v2Go<2.0.432.0.43
miniflux.appGo<=1.0.46No fixed version yet
Identifiers
GHSA-3qjf-qh38-x73v · CVE-2023-27591
Weakness (CWE)
CWE-200 · CWE-1220
Tags
Published
2 Apr 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Miniflux (miniflux.app/v2) versions before 2.0.43 are vulnerable. An unauthenticated remote attacker can reach a publicly exposed instance with the metrics collector enabled and the default allowed networks setting, and retrieve Prometheus metrics. Upgrade to version 2.0.43 or later; alternatively, keep the metrics collector disabled, which is the default. The package miniflux.app at versions 1.0.46 and earlier has no fixed version listed.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0076, the 55th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:14 UTC First seen by agentprime
  2. 31 Oct 2026, 14:14 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.