GHSA-22rm-wp4x-v5cx

Suggest an improvement
Source
https://github.com/advisories/GHSA-22rm-wp4x-v5cx
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-22rm-wp4x-v5cx/GHSA-22rm-wp4x-v5cx.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-22rm-wp4x-v5cx
Aliases
  • CVE-2026-4874
Published
2026-03-26T09:30:28Z
Modified
2026-03-27T20:17:31.043070Z
Severity
  • 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Keycloak Server-Side Request Forgery via OIDC token endpoint manipulation
Details

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the client_session_host parameter during refresh token requests. This occurs when a Keycloak client is configured to use the backchannel.logout.url with the application.session.host placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to information disclosure.

Database specific 
{
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-918"
    ],
    "nvd_published_at": "2026-03-26T08:16:22Z",
    "github_reviewed_at": "2026-03-27T20:03:17Z",
    "severity": "LOW"
}
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
Last affected
26.5.6

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

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-22rm-wp4x-v5cx/GHSA-22rm-wp4x-v5cx.json"