CVE catalog
CVE-2026-44681
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 authorizat
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.25% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-authlib | sid | 1.7.2-2 | fixed |
| Debian | python-authlib | forky | 1.7.2-2 | fixed |
| Debian | python-authlib | trixie | 1.6.0-1+deb13u1 | vulnerable |
| Debian | python-authlib | bookworm | 1.2.0-1+deb12u1 | vulnerable |
| Debian | python-authlib | bookworm-security | 1.2.0-1+deb12u2 | fixed |
| Cpe | python-authlib | Not reported | Not reported | vulnerable |
| Cpe | authlib | Not reported | 1.6.12 | fixed |
| Cpe | authlib | Not reported | Not reported | unknown |
| Opensuse | python-Authlib | tumbleweed | 1.7.2-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-authlib | source | sid | 1.7.2-1 | not yet assigned | Not reported | Not reported |
| Debian | python-authlib | source | forky | 1.7.2-1 | not yet assigned | Not reported | Not reported |
| Debian | python-authlib | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | python-authlib | source | bookworm | 1.2.0-1+deb12u2 | not yet assigned | Not reported | Not reported |
| Cpe | authlib | cpe | Not reported | 1.6.12 | Not reported | Not reported | Not reported |
| Opensuse | python-Authlib | rpm | tumbleweed | 1.7.2-1.1 | Not reported | OPENSUSE-SU-2026:10883-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-authlib]Affected
Source package: [python-authlib]
Details (4)
1.2.0-1+deb12u1· all · bookwormAffected · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u1· all · bookwormAffected · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
- [python-authlib-doc]Affected
Source package: [python-authlib]
Details (4)
1.2.0-1+deb12u1· all · bookwormAffected · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u1· all · bookwormAffected · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
1.2.0-1+deb12u2· all · bookworm-securityFixed · Fixed:
1.2.0-1+deb12u2nvd · python-authlib · debian · bookworm; nvd · python-authlib · debian · 12
[Debian 13 (Trixie)]
- [python3-authlib]Affected
Source package: [python-authlib]
Details (2)
1.6.0-1+deb13u1· all · trixieAffected
nvd · python-authlib · debian · 13
1.6.0-1+deb13u1· all · trixieAffected
nvd · python-authlib · debian · 13
- [python-authlib-doc]Affected
Source package: [python-authlib]
Details (2)
1.6.0-1+deb13u1· all · trixieAffected
nvd · python-authlib · debian · 13
1.6.0-1+deb13u1· all · trixieAffected
nvd · python-authlib · debian · 13
[openSUSE Tumbleweed]
- [python313-Authlib]Unknown
Source package: [python-Authlib]
Details (1)
1.7.2-3.1· noarch · tumbleweedUnknown · Fixed:
1.7.2-1.1Version impact unknown
nvd · python-Authlib · opensuse · tumbleweed
- [python314-Authlib]Unknown
Source package: [python-Authlib]
Details (1)
1.7.2-3.1· noarch · tumbleweedUnknown · Fixed:
1.7.2-1.1Version impact unknown
nvd · python-Authlib · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10883-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44681]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44681]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10883-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-44681]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44681.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]