Dashboard / CVE-2026-114619

CVE-2026-114619

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 49/100
Published: 2026-10-22 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Required
S: Unchanged
C: Low
I: Low
A: None

Description

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDImplicitGrant.validate_authorization_request() checks the client-controlled raw request.payload.scope for openid after the parent grant has filtered allowed scopes into request.scope. A registered client permitted an ID token response type but not the openid scope can add openid to the request, obtain user consent, and receive a signed ID token containing the user's subject and allowed profile claims. Authorization code flow and deployments that allow openid for every client permitted an ID token response are not affected. In authlib/oidc/core/grants/implicit.py, OpenIDImplicitGrant.validate_authorization_request() checks request.payload.scope instead of the filtered request.scope. This issue is fixed in version 1.9.0.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
authlib authlib < 1.9.0
authlib authlib < 1.9.0

References & Advisories (4)

Bug Bounty Relevance

49 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

4.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS — Exploitation Probability

0.16%
Raw Score 0.001570
Percentile 4.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00157
2026-10-28
0.00157

Intelligence Sources

mitre ref →
nvd ref →

External Links