CVE-2025-14559Network attack vectorHinoki check available

Unauthorized token issuance via omitted user-status check

Published Jan 21, 2026 · Updated Jan 21, 2026

Incorrect authorization in Red Hat build of Keycloak before 26.4.9 allows remote authenticated users to mint tokens for disabled users. The version 1 token-exchange handler resolves requested_subject but checks only that the user exists, not that the account is enabled. An internal client with impersonation permission is required; the resulting access and refresh tokens restore privileges that account deactivation had revoked.

CVSS severity6.5
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in Red Hat build of Keycloak before 26.4.9 allows remote authenticated users to mint tokens for disabled users. The version 1 token-exchange handler resolves requested_subject but checks only that the user exists, not that the account is enabled. An internal client with impersonation permission is required; the resulting access and refresh tokens restore privileges that account deactivation had revoked.

The record

CVE
CVE-2025-14559
Published
Jan 21, 2026
Updated
Jan 21, 2026
Vendor
389 Directory Server
Product
Red Hat build of Keycloak
Classifications
CWE-840, T1550.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

389 Directory Server · Red Hat build of KeycloakAffected versions are unavailable in this record.

Published CVSS scores

6.5Red HatCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-840Business Logic Errors
T1550.001Application Access Token

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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