CVE-2026-44681

medium
Published 2026-05-27 ยท Modified 2026-06-03
CVSS v3
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
6.1

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.

Predictions

Exploit likelihood
71%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

suse SUSE Affected 1 release
VersionStatusFixed in
โ€” Affected โ€”
debian Debian Mixed 5 releases
VersionStatusFixed in
trixie Affected โ€”
sid Fixed 1.7.2-1
forky Fixed 1.7.2-1
bullseye Affected โ€”
bookworm Affected โ€”

Package impact

EcosystemPackageVulnerableFixed
python PyPIauthlib>=1.7.0,<1.7.11.7.1
python PyPIauthlib<1.6.121.6.12
PIPauthlib<= 1.6.111.6.12
PIPauthlib= 1.7.01.7.1

Application impact

VendorProductVersionsFixed
authlibauthlib{"endExcluding":"1.6.12"}1.6.12
authlibauthlib1.7.0

References

CWEs

CWE-601 CWE-863

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.