Open Source Feed Reader Vulnerability in Miniflux by Miniflux
CVE-2026-55185

5.1MEDIUM

Key Information:

Vendor

Miniflux

Status
V2
Vendor
CVE Published:
21 August 2026

What is CVE-2026-55185?

Miniflux, an open source feed reader, contains a vulnerability in its handling of redirect URLs. Prior to version 2.3.1, the application allowed redirection through URLs that included backslashes due to how the Go programming language processes URL paths. This flaw enables unauthenticated attackers to bypass security checks and redirect users to potentially malicious external websites, posing a significant risk to user data and security. Version 2.3.1 addresses and mitigates this issue, emphasizing the importance of timely updates for users.

Affected Version(s)

v2 < 2.3.1

References

https://github.com/miniflux/v2/security/advisories/GHSA-m...
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https://github.com/miniflux/v2/pull/4362
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https://github.com/miniflux/v2/commit/c896bafdaa19c3f280b...
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CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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