CVE-2026-55185

Name	CVE-2026-55185
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 (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
miniflux (PTS)	trixie	2.2.6-1	vulnerable
	forky, sid	2.3.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
miniflux	source	(unstable)	2.3.2-1

Notes

https://github.com/miniflux/v2/security/advisories/GHSA-m999-j542-5w3r
https://github.com/miniflux/v2/pull/4362
Fixed by: https://github.com/miniflux/v2/commit/c896bafdaa19c3f280b02b1059f84706495f1949 (2.3.1)