4.9 CVE-2026-11986
A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.
https://nvd.nist.gov/vuln/detail/CVE-2026-11986
Categories
CWE-425 : Direct Request ('Forced Browsing')
The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files. The "forced browsing" term could be misinterpreted to include weaknesses such as CSRF or XSS, so its use is discouraged. Apply appropriate access control authorizations for each access to all restricted URLs, scripts or files. Consider using MVC based frameworks such as Struts. Access-control setting in web-based document collaboration tool is not properly implemented by the code, which prevents listing hidden directories but does not prevent direct requests to files in those directories. Bypass authentication via direct request. Infinite loop or infoleak triggered by direct requests. Bypass auth/auth via direct request. Direct request leads to infoleak by error. Direct request leads to infoleak by error. Direct request leads to infoleak by error. Authentication bypass via direct request. Authentication bypass via direct request. Authorization bypass using direct request. Access privileged functionality using direct request. Upload arbitrary files via direct request.
References
AFFECTED (from MITRE)
| Vendor |
Product |
Versions |
| Red Hat |
Red Hat Build of Keycloak |
|
| Red Hat |
Red Hat Build of Keycloak |
|
| Red Hat |
Red Hat Build of Keycloak |
|
| Red Hat |
Red Hat JBoss Enterprise Application Platform Expansion Pack |
|
| © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. |
CPE
REMEDIATION
EXPLOITS
Exploit-db.com
| id |
description |
date |
|
| No known exploits |
POC Github
Other Nist (github, ...)
CAPEC
Common Attack Pattern Enumerations and Classifications
| id |
description |
severity |
| 127 |
Directory Indexing
An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks. [Directory Discovery] Use a method, either manual, scripted, or automated to discover the directories on the server by making requests for directories that may possibly exist. During this phase the adversary is less concerned with whether a directory can be accessed or indexed and more focused on simply discovering what directories do exist on the target. [Iteratively explore directory/file structures] The adversary attempts to access the discovered directories that allow access and may attempt to bypass server or application level ACLs by using manual or automated methods [Read directories or files which are not intended for public viewing.] The adversary attempts to access the discovered directories that allow access and may attempt to bypass server or application level ACLs by using manual or automated methods |
Medium |
| 143 |
Detect Unpublicized Web Pages
An adversary searches a targeted web site for web pages that have not been publicized. In doing this, the adversary may be able to gain access to information that the targeted site did not intend to make public. [Find target web site] An adversary finds a target web site that they think may have unpublicized web pages [Map the published web site] The adversary will map the published web site either by using an automated tool or by manually accessing well-known debugging or logging pages, or otherwise predictable pages within the site tree [Try to find weaknesses or information] The adversary will try to find weaknesses or information on the unpublicized pages that the targeted site did not intend to be public [Follow-up attack] Use any information or weaknesses found to carry out a follow-up attack |
Low |
| 144 |
Detect Unpublicized Web Services
An adversary searches a targeted web site for web services that have not been publicized. This attack can be especially dangerous since unpublished but available services may not have adequate security controls placed upon them given that an administrator may believe they are unreachable. [Find target web site] An adversary finds a target web site that they think may have unpublicized web services [Map the published web site] The adversary will map the published web site either by using an automated tool or by manually accessing well-known debugging or logging pages, or otherwise predictable pages within the site tree [Try to find weaknesses or information] The adversary will try to find weaknesses in the unpublicized services that the targeted site did not intend to be public [Follow-up attack] Use any information or weaknesses found to carry out a follow-up attack |
Low |
| 668 |
Key Negotiation of Bluetooth Attack (KNOB)
An adversary can exploit a flaw in Bluetooth key negotiation allowing them to decrypt information sent between two devices communicating via Bluetooth. The adversary uses an Adversary in the Middle setup to modify packets sent between the two devices during the authentication process, specifically the entropy bits. Knowledge of the number of entropy bits will allow the attacker to easily decrypt information passing over the line of communication. [Discovery] Using an established Person in the Middle setup, search for Bluetooth devices beginning the authentication process. [Change the entropy bits] Upon recieving the initial key negotiation packet from the master, the adversary modifies the entropy bits requested to 1 to allow for easy decryption before it is forwarded. [Capture and decrypt data] Once the entropy of encryption is known, the adversary can capture data and then decrypt on their device. |
High |
| 87 |
Forceful Browsing
An attacker employs forceful browsing (direct URL entry) to access portions of a website that are otherwise unreachable. Usually, a front controller or similar design pattern is employed to protect access to portions of a web application. Forceful browsing enables an attacker to access information, perform privileged operations and otherwise reach sections of the web application that have been improperly protected. [Spider] Using an automated tool, an attacker follows all public links on a web site. They record all the links they find. [Attempt well-known or guessable resource locations] Using an automated tool, an attacker requests a variety of well-known URLs that correspond to administrative, debugging, or other useful internal actions. They record all the positive responses from the server. [Use unauthorized resources] By visiting the unprotected resource, the attacker makes use of unauthorized functionality. [View unauthorized data] The attacker discovers and views unprotected sensitive data. |
High |
MITRE
Techniques
| id |
description |
| T1083 |
File and Directory Discovery |
| T1565.002 |
Data Manipulation: Transmitted Data Manipulation |
| © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. |
Mitigations
| id |
description |
| M1041 |
Encrypt all important data flows to reduce the impact of tailored modifications on data in transit. |
| © 2022 The MITRE Corporation. Esta obra se reproduce y distribuye con el permiso de The MITRE Corporation. |
Cybersecurity needs ?
Strengthen software security from the outset with our DevSecOps expertise
Integrate security right from the start of the software development cycle for more robust applications and greater customer confidence.
Our team of DevSecOps experts can help you secure your APIs, data pipelines, CI/CD chains, Docker containers and Kubernetes deployments.
Discover this offer
