Unauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metrics
CVE-2023-27591

7.5HIGH

Key Information:

Vendor

Miniflux

Status
V2
Vendor
CVE Published:
17 March 2023

What is CVE-2023-27591?

An unauthenticated access vulnerability exists in Miniflux, a popular feed reader. This allows unauthorized users to access Prometheus metrics from any publicly reachable Miniflux instance that has the METRICS_COLLECTOR option enabled and METRICS_ALLOWED_NETWORKS set to its default value of 127.0.0.1/8. Users are encouraged to upgrade to version 2.0.43 or later, where the vulnerability is patched. As a temporary measure, disabling METRICS_COLLECTOR or using a trusted reverse-proxy is also recommended.

Affected Version(s)

v2 < 2.0.43

References

https://github.com/miniflux/v2/security/advisories/GHSA-3...
x_refsource_CONFIRM
https://github.com/miniflux/v2/pull/1745
x_refsource_MISC
https://github.com/miniflux/v2/releases/tag/2.0.43
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.