CVE-2026-19608

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 51/100
Published: 2026-08-18 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.

Weakness Classification (1)

References & Advisories (4)

https://access.redhat.com/errata/RHSA-2026:95761
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:95762
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2514530
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

51 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003400
Percentile 27.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00340
2026-11-12
0.00340
2026-11-10
0.00340
2026-11-09
0.00340
2026-11-08
0.00340
2026-11-07
0.00340
2026-11-06
0.00272
2026-11-05
0.00272

Intelligence Sources

mitre ref →
nvd ref →