CVE-2026-55185— Miniflux 2: Open Redirect Bypass
Quick assessment
Affected
miniflux v2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Miniflux 2是Miniflux个人开发者的一款极简的RSS阅读器。 Miniflux 2 2.3.1之前版本存在输入验证错误漏洞，该漏洞源于internal/urllib/url.go中的IsRelativePath函数接受包含反斜杠的重定向目标，导致未经身份验证的攻击者能够向登录流程提供特制的redirect_url值，绕过相对路径和主机检查，将受害者重定向到攻击者控制的外部网站。
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I. Basic Information for CVE-2026-55185
Vulnerability Information
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Vulnerability Title
Miniflux 2: Open Redirect Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Miniflux 2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Miniflux 2是Miniflux个人开发者的一款极简的RSS阅读器。 Miniflux 2 2.3.1之前版本存在输入验证错误漏洞，该漏洞源于internal/urllib/url.go中的IsRelativePath函数接受包含反斜杠的重定向目标，导致未经身份验证的攻击者能够向登录流程提供特制的redirect_url值，绕过相对路径和主机检查，将受害者重定向到攻击者控制的外部网站。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-55185
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Patches & Fixes for CVE-2026-55185 (2)
Vendor Advisories for CVE-2026-55185 (1)
Vendor Pages for CVE-2026-55185 (1)
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🔗 Release Miniflux 2.3.1 · miniflux/v2 · GitHub x_refsource_MISC
IV. Related Vulnerabilities
Same product: v2
-
CVE-2026-21885
Miniflux Media Proxy SSRF via /proxy endpoint allows access -
CVE-2025-67713
Miniflux 2 has an Open Redirect via protocol-relative `redir -
CVE-2025-31483
Stored XSS in Miniflux Media Proxy due to improper Content-S -
CVE-2023-27591
Unauthenticated Miniflux user can bypass allowed networks ch -
CVE-2023-27592
Stored XSS in Miniflux when opening a broken image due to un
Same vendor: miniflux
-
CVE-2026-108735
Miniflux 2.3.0 through 2.3.3 SSRF via Per-Feed Proxy URL -
CVE-2026-21885
Miniflux Media Proxy SSRF via /proxy endpoint allows access -
CVE-2025-67713
Miniflux 2 has an Open Redirect via protocol-relative `redir -
CVE-2025-31483
Stored XSS in Miniflux Media Proxy due to improper Content-S -
CVE-2023-27591
Unauthenticated Miniflux user can bypass allowed networks ch
Same weakness: CWE-601
-
CVE-2026-109160
PublicCMS pay Endpoint SafeConfigComponent.java SafeConfigCo -
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URL Redirection to Untrusted Site ('Open Redirect') in GitLa -
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Open Redirect Vulnerability in SAP NetWeaver Enterprise Port -
CVE-2024-58389
HoloViz Panel from 1.2.2 before 1.9.0 Open Redirect via next -
CVE-2026-92116
Apache Allura: OAuth1 missing callback validation
V. Comments for CVE-2026-55185
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