Is CVE-2026-55185 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-55185 being exploited in the wild.

How severe is CVE-2026-55185?

Medium severity, with a CVSS score of 4, published 21 August 2026.

Which products and versions are affected?

miniflux.app (Go) SEMVER:introduced=0; miniflux.app/v2 (Go) <= 2.3.0, SEMVER:introduced=0,fixed=2.3.1; Miniflux <= 2.3.0.

Is there a fix for CVE-2026-55185?

Yes. miniflux.app/v2 (Go): upgrade to 2.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-55185 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-55185?

Check whether you run miniflux.app (Go), miniflux.app/v2 (Go) or Miniflux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-55185: Miniflux miniflux-v2 open redirect bypass

Q: Is there a fix for CVE-2026-55185?

Yes. miniflux.app/v2 (Go): upgrade to 2.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-55185 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-55185?

Check whether you run miniflux.app (Go), miniflux.app/v2 (Go) or Miniflux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-55185 · Severity: medium · CVSS 4 · Published 2026-08-21

Miniflux, a minimalist RSS feed reader, is vulnerable to an open redirect flaw. Attackers can trick users into clicking a link that appears to belong to the trusted Miniflux application but instead redirects them to a malicious external website. This can be used in phishing campaigns to steal user credentials or deliver malware by exploiting the user's trust in the original domain.

Technologies: miniflux.app (Go), miniflux.app/v2 (Go). Vendors: Go.

Quick answers

Is CVE-2026-55185 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-55185 being exploited in the wild.
How severe is CVE-2026-55185?: Medium severity, with a CVSS score of 4, published 21 August 2026.
Which products and versions are affected?: miniflux.app (Go) SEMVER:introduced=0; miniflux.app/v2 (Go) <= 2.3.0, SEMVER:introduced=0,fixed=2.3.1; Miniflux <= 2.3.0.
Is there a fix for CVE-2026-55185?: Yes. miniflux.app/v2 (Go): upgrade to 2.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-55185 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-55185?: Check whether you run miniflux.app (Go), miniflux.app/v2 (Go) or Miniflux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

miniflux.app/v2 (Go): upgrade to 2.3.1 or later
```
go get miniflux.app/v2@v2.3.1
```

Technical details

An open redirect vulnerability exists in Miniflux v2 due to insufficient validation in the IsRelativePath function. While the application attempts to block absolute URLs and protocol-relative paths (e.g., //example.com), it fails to account for backslash characters that browsers automatically normalize. An attacker can use a payload like '/\example.com' to bypass the relative path check. The backend treats this as a relative path because it lacks a host or scheme, but modern browsers interpret the backslash as a forward slash, resulting in a redirection to an external domain. This can be exploited via the redirect_url parameter during login or other navigation events. The issue is fixed in version 2.3.1.

Affected products

miniflux miniflux/v2 <= 2.3.0

Identifiers

CVE-2026-55185
GHSA-m999-j542-5w3r
GO-2026-5500

Timeline

2026-06-18: disclosed
2026-06-19: advisory
2026-06-19: patched: Fixed in version 2.3.1

References

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