VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 5.4 mediumEPSS 0.3% probability of exploitation in 30 daysFound by AI: OpenAI
Red Hat

CVE-2026-18570: Keycloak-services: keycloak-services: full-scope-disabled client policy validation bypass via omitted fullscopeallowed

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
0.3%

EPSS score, percentile 23.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
5.4 Medium

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (2)

Which versions are affected?

Unaffected 26.6.7-3; 26.6-20; 26.6-20

Versions by product

Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

What to do

Workaround (from the CVE record)

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

As listed in the CVE record.

Red Hat Red Hat build of Keycloak 26.6
StatusVersions
Unaffected26.6.7-3

Versions not listed are: affected.

Red Hat Red Hat build of Keycloak 26.6
StatusVersions
Unaffected26.6-20

Versions not listed are: affected.

Red Hat Red Hat build of Keycloak 26.6
StatusVersions
Unaffected26.6-20

Versions not listed are: affected.

Red Hat Red Hat build of Keycloak 26.6.7
StatusVersions

Versions not listed are: unaffected.

Red Hat Red Hat build of Keycloak 26.6.7
StatusVersions

Versions not listed are: unaffected.

Red Hat Red Hat build of Keycloak 26.6.7
StatusVersions

Versions not listed are: unaffected.

Red Hat Red Hat Data Grid 8
StatusVersions

Versions not listed are: unaffected.

Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
StatusVersions

Versions not listed are: unaffected.

Red Hat Red Hat Single Sign-On 7
StatusVersions

Versions not listed are: unaffected.

Versions the record lists as unaffected: 26.6.7-3, 26.6-20.

Source: CVE List, as of . About the data.

About this vulnerability

A flaw was found in the full-scope-disabled client-policy executor within the keycloak-services component. This component is responsible for enforcing security policies during client registration and configuration in Red Hat Build of Keycloak. The issue occurs because the executor only validates the fullScopeAllowed field when it is explicitly provided in a request. By omitting this field, a dele…

Summary: CVE record, as of .

  • CISA has not added CVE-2026-18570 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
  • The CVE record was published on 2 Aug 2026.
  • The CVE record carries a CVSS v3.1 base score of 5.4 (Medium), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.3% (percentile 23.3), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
  • CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact partial.
  • The credits in the CVE record name OpenAI as finder.

Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.

Description

Keycloak-services: keycloak-services: full-scope-disabled client policy validation bypass via omitted fullscopeallowed

A flaw was found in the full-scope-disabled client-policy executor within the keycloak-services component. This component is responsible for enforcing security policies during client registration and configuration in Red Hat Build of Keycloak. The issue occurs because the executor only validates the fullScopeAllowed field when it is explicitly provided in a request. By omitting this field, a delegated user can bypass the policy, resulting in a client created with full scope access. This allows the client to obtain tokens with unauthorized role mappings.

Source: CVE List, as of . About the data.

Weakness

CWE-862

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

2

Known exploited Red Hat vulnerabilities

  • CVE-2015-3246: Red Hat Libuser Race Condition Vulnerability (added )
  • CVE-2015-5287: Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability (added )
  • CVE-2018-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability (added )
  • CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability (added )
  • CVE-2021-4034: Red Hat Polkit Out-of-Bounds Read and Write Vulnerability (added )