GHSA-g8vr-x4qh-25qg

Suggest an improvement
Source
https://github.com/advisories/GHSA-g8vr-x4qh-25qg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-g8vr-x4qh-25qg/GHSA-g8vr-x4qh-25qg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-g8vr-x4qh-25qg
Aliases
  • CVE-2026-8830
Downstream
Published
2026-05-19T09:31:20Z
Modified
2026-06-04T17:45:21.136548265Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation
Details

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.

Database specific 
{
    "cwe_ids": [
        "CWE-603"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-04T17:28:15Z",
    "nvd_published_at": "2026-05-19T07:16:30Z",
    "severity": "MODERATE"
}
References

Affected packages

Maven / org.keycloak:keycloak-services

Package

Name
org.keycloak:keycloak-services
View open source insights on deps.dev
Purl
pkg:maven/org.keycloak/keycloak-services

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
26.6.3

Affected versions

1.*
1.0-alpha-1
1.0-alpha-1-12062013
1.0-alpha-2
1.0-alpha-3
1.0-alpha-4
1.0-beta-1
1.0-beta-1-20150521
1.0-beta-1-20150523
1.0-beta-2
1.0-beta-3
1.0-beta-4
1.0-rc-1
1.0-rc-2
1.0-final
1.0.1.Final
1.0.2.Final
1.0.3.Final
1.0.4.Final
1.0.5.Final
1.1.0.Beta1
1.1.0.Beta2
1.1.0.Final
1.1.1.Final
1.2.0.Beta1
1.2.0.CR1
1.2.0.Final
1.3.0.Final
1.3.1.Final
1.4.0.Final
1.5.0-Final
1.5.0.Final
1.5.1.Final
1.6.0.Final
1.6.1.Final
1.7.0.CR1
1.7.0.Final
1.8.0.Alpha1
1.8.0.CR1
1.8.0.CR2
1.8.0.CR3
1.8.0.Final
1.8.1.Final
1.9.0.CR1
1.9.0.Final
1.9.1.Final
1.9.2.Final
1.9.3.Final
1.9.4.Final
1.9.5.Final
1.9.7.Final
1.9.8.Final
2.*
2.0.0.CR1
2.0.0.Final
2.1.0.CR1
2.1.0.Final
2.2.0.CR1
2.2.0.Final
2.2.1.Final
2.3.0.CR1
2.3.0.Final
2.4.0.CR1
2.4.0.Final
2.5.0.CR1
2.5.0.Final
2.5.1.Final
2.5.4.Final
2.5.5.Final
3.*
3.0.0.CR1
3.0.0.Final
3.1.0.CR1
3.1.0.Final
3.2.0.CR1
3.2.0.Final
3.2.1.Final
3.3.0.CR1
3.3.0.CR2
3.3.0.Final
3.4.0.CR1
3.4.0.Final
3.4.1.CR1
3.4.1.Final
3.4.2.Final
3.4.3.Final
4.*
4.0.0.Beta1
4.0.0.Beta2
4.0.0.Beta3
4.0.0.Final
4.1.0.Final
4.2.0.Final
4.2.1.Final
4.3.0.Final
4.4.0.Final
4.5.0.Final
4.6.0.Final
4.7.0.Final
4.8.0.Final
4.8.1.Final
4.8.2.Final
4.8.3.Final
5.*
5.0.0
6.*
6.0.0
6.0.1
7.*
7.0.0
7.0.1
8.*
8.0.0
8.0.1
8.0.2
9.*
9.0.0
9.0.2
9.0.3
10.*
10.0.0
10.0.1
10.0.2
11.*
11.0.0
11.0.1
11.0.2
11.0.3
12.*
12.0.0
12.0.1
12.0.2
12.0.3
12.0.4
13.*
13.0.0
13.0.1
14.*
14.0.0
15.*
15.0.0
15.0.1
15.0.2
15.1.0
15.1.1
16.*
16.0.0
16.1.0
16.1.1
17.*
17.0.0
17.0.1
18.*
18.0.0
18.0.1
18.0.2
19.*
19.0.0
19.0.1
19.0.2
19.0.3
20.*
20.0.0
20.0.1
20.0.2
20.0.3
20.0.4
20.0.5
21.*
21.0.0
21.0.1
21.0.2
21.1.0
21.1.1
21.1.2
22.*
22.0.0
22.0.1
22.0.2
22.0.3
22.0.4
22.0.5
23.*
23.0.0
23.0.1
23.0.2
23.0.3
23.0.4
23.0.5
23.0.6
23.0.7
24.*
24.0.0
24.0.1
24.0.2
24.0.3
24.0.4
24.0.5
25.*
25.0.0
25.0.1
25.0.2
25.0.3
25.0.4
25.0.5
25.0.6
26.*
26.0.0
26.0.1
26.0.2
26.0.3
26.0.4
26.0.5
26.0.6
26.0.7
26.0.8
26.1.0
26.1.1
26.1.2
26.1.3
26.1.4
26.1.5
26.2.0
26.2.1
26.2.2
26.2.3
26.2.4
26.2.5
26.3.0
26.3.1
26.3.2
26.3.3
26.3.4
26.3.5
26.4.0
26.4.1
26.4.2
26.4.3
26.4.4
26.4.5
26.4.6
26.4.7
26.5.0
26.5.1
26.5.2
26.5.3
26.5.4
26.5.5
26.5.6
26.5.7
26.6.0
26.6.1
26.6.2

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-g8vr-x4qh-25qg/GHSA-g8vr-x4qh-25qg.json"
last_known_affected_version_range 
"<= 26.6.2"