Description

Improper Access Control (IDOR) in the Graylog API, version 2.2.3, which occurs when modifying the user ID in the URL. An authenticated user can access other user's profiles without proper authorization checks. Exploiting this vulnerability allows valid users of the system to be listed and sensitive third-party information to be accessed, such as names, email addresses, internal identifiers, and last activity. The endpoint 'http://<IP>:12900/users/<my_user>' does not implement object-level authorization validations.

INFO

Published Date :

2026-02-18T13:09:35.443Z

Last Modified :

2026-02-18T14:19:37.438Z

Source :

INCIBE
AFFECTED PRODUCTS

The following products are affected by CVE-2026-1436 vulnerability.

Vendors Products
Graylog
  • Graylog
  • Graylog Web Interface
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1436.

URL Resource
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-graylog cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact