CVE-2025-14777Network attack vectorHinoki check available

Cross-client resource modification via identifier scope mismatch

Published Dec 16, 2025 · Updated Dec 16, 2025

Broken access control in Red Hat build of Keycloak 26.4 allows remote authenticated users to alter another client's resources. ResourceSetService and PermissionTicketService authorize the request's resourceServer client ID, but findById and delete act on only the supplied resourceId. Fine-grained administrative permission for one client and a valid resource ID suffice to update or delete another client's authorization resources in the same realm.

CVSS severity6.0
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Broken access control in Red Hat build of Keycloak 26.4 allows remote authenticated users to alter another client's resources. ResourceSetService and PermissionTicketService authorize the request's resourceServer client ID, but findById and delete act on only the supplied resourceId. Fine-grained administrative permission for one client and a valid resource ID suffice to update or delete another client's authorization resources in the same realm.

The record

CVE
CVE-2025-14777
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
389 Directory Server
Product
Red Hat build of Keycloak
Classifications
CWE-289, T1565
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record 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 privilegesauthenticated

What is affected?

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

Published CVSS scores

6.0Red HatCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-289Authentication Bypass by Alternate Name
T1565Data Manipulation

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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