CVE-2026-55185: medium-severity vulnerability in miniflux v2
Miniflux 2: Open Redirect Bypass
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.1epss 0.6%
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.
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
Affected products
miniflux · v2Related CVEs — miniflux v2
In the same product, most dangerous first.
CVE-2023-27591HIGHUnauthenticated Miniflux user can bypass allowed networks check to obtain Prometheus metricsEPSS 0.8%CVE-2023-27592MEDIUMStored XSS in Miniflux when opening a broken image due to unescaped ServerError in proxy handlerEPSS 0.6%CVE-2025-31483MEDIUMStored XSS in Miniflux Media Proxy due to improper Content-Security-Policy configurationEPSS 0.4%CVE-2026-21885MEDIUMMiniflux Media Proxy SSRF via /proxy endpoint allows access to internal network resourcesEPSS 0.3%CVE-2025-67713MEDIUMMiniflux 2 has an Open Redirect via protocol-relative `redirect_url`EPSS 0.2%