GHSA-fqjh-8322-vgrv

Source

https://github.com/advisories/GHSA-fqjh-8322-vgrv

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-fqjh-8322-vgrv/GHSA-fqjh-8322-vgrv.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-fqjh-8322-vgrv

Aliases

CVE-2026-9794

Published

2026-05-28T06:31:09Z

Modified

2026-07-01T21:30:19.062942607Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Summary

Keycloak Generates an Error Message Containing Sensitive Information

Details

A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure.

Database specific

{
    "github_reviewed_at": "2026-07-01T21:24:01Z",
    "nvd_published_at": "2026-05-28T05:16:40Z",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-209"
    ],
    "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

Last affected

26.4.7

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

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-fqjh-8322-vgrv/GHSA-fqjh-8322-vgrv.json"

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

26.5.0

Fixed

26.6.3

Affected versions

26.*

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-fqjh-8322-vgrv/GHSA-fqjh-8322-vgrv.json"