Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak | affected | — |
| Red Hat | Red Hat Build of Keycloak | affected | — |
| Red Hat | Red Hat Build of Keycloak | affected | — |
| Red Hat | Red Hat Data Grid 8 | unaffected | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | unaffected | — |
| Red Hat | Red Hat Single Sign-On 7 | unaffected | — |
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Project Subscriptions
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Fixes
Solution
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Workaround
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References
History
Sun, 02 Aug 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times. | |
| Title | Keycloak-services: keycloak-services: uma claim token can override authorization time-policy evaluation attributes | |
| First Time appeared |
Redhat
Redhat build Keycloak Redhat jboss Data Grid Redhat jbosseapxp Redhat red Hat Single Sign On |
|
| Weaknesses | CWE-863 | |
| CPEs | cpe:/a:redhat:build_keycloak: cpe:/a:redhat:jboss_data_grid:8 cpe:/a:redhat:jbosseapxp cpe:/a:redhat:red_hat_single_sign_on:7 |
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| Vendors & Products |
Redhat
Redhat build Keycloak Redhat jboss Data Grid Redhat jbosseapxp Redhat red Hat Single Sign On |
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| References |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-02T05:18:58.904Z
Reserved: 2026-08-02T05:15:43.624Z
Link: CVE-2026-18572
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses