CVE-2026-44681

Name	CVE-2026-44681
Description	Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1.
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
python-authlib (PTS)	bullseye	0.15.4-1	vulnerable
	bullseye (security)	0.15.4-1+deb11u2	vulnerable
	bookworm	1.2.0-1+deb12u1	vulnerable
	trixie	1.6.0-1+deb13u1	vulnerable
	forky, sid	1.7.2-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-authlib	source	(unstable)	1.7.2-1

https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2