CVE-2025-67713: Miniflux 2 has an Open Redirect via protocol-relative `redirect_url`

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-11 · updated 2026-10-08
Weakness: CWE-601

Description

Miniflux 2 is an open source feed reader. Versions 2.2.14 and below treat redirect_url as safe when url.Parse(...).IsAbs() is false, enabling phishing flows after login. Protocol-relative URLs like //ikotaslabs.com have an empty scheme and pass that check, allowing post-login redirects to attacker-controlled sites. This issue is fixed in version 2.2.15.

Affected products

miniflux: before 2.2.15 — fixed in 2.2.15

How to fix

Upgrade to a fixed version: miniflux 2.2.15. Check the vendor advisory for mitigations.

References

https://github.com/miniflux/v2/commit/76df99f3a3db234cf6b312be5e771485213d03c7
https://github.com/miniflux/v2/security/advisories/GHSA-wqv2-4wpg-8hc9

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