CVE-2026-18218

Published: Lug 31, 2026 Last Modified: Lug 31, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,2
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

A flaw was found in the TokenManager component of the Keycloak identity management service. When an administrator attempts to revoke tokens for a specific application (client) using a 'not-before' policy, the revocation may be silently ignored if the overall security realm already has an older, non-zero revocation policy in place. This issue can allow previously issued tokens to remain valid for refreshing sessions and accessing user information even after an administrator has attempted to invalidate them.
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862

Missing Authorization

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: AI/ML, Web Server, Database Server, Not Technology-Specific
Likelihood of Exploit: High
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-18218
https://access.redhat.com/security/cve/CVE-2026-18218
https://bugzilla.redhat.com/show_bug.cgi?id=2508313
https://bugzilla.redhat.com/show_bug.cgi?id=2508313