UBUNTU-CVE-2026-55185

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Source
https://ubuntu.com/security/CVE-2026-55185
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55185.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-55185
Upstream
Published
2026-08-21T21:17:00Z
Modified
2026-09-02T19:36:19.865175271Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Miniflux 2 is an open source feed reader. Prior to 2.3.1, IsRelativePath in internal/urllib/url.go accepts redirect targets containing backslashes because Go URL parsing treats them as path characters. Browser backslash normalization converts them to forward slashes. An unauthenticated attacker can provide such a redirect_url value to the login flow, bypass the relative-path and host checks, and redirect a victim to an attacker-controlled external site. This issue is fixed in version 2.3.1.

References

Affected packages

Ubuntu:Pro:24.04:LTS / miniflux

Package

Name
miniflux
Purl
pkg:deb/ubuntu/miniflux?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.51-1
2.0.51-2
2.0.51-2ubuntu0.1
2.0.51-2ubuntu0.2
2.0.51-2ubuntu0.2+esm1
2.0.51-2ubuntu0.3
2.0.51-2ubuntu0.3+esm1
2.0.51-2ubuntu0.3+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.51-2ubuntu0.3+esm2",
            "binary_name": "miniflux"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55185.json"

Ubuntu:Pro:26.04:LTS / miniflux

Package

Name
miniflux
Purl
pkg:deb/ubuntu/miniflux?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.2.6-2
2.2.13-1
2.2.16-2
2.2.16-2ubuntu0.26.04.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.2.16-2ubuntu0.26.04.1~esm1",
            "binary_name": "miniflux"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55185.json"