VULNERABILITY INTELLIGENCE

CVE-2026-1436

CVSS score7.1 HIGH
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-02-18
Last modified2026-06-17
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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.

Weakness classification

  • CWE-639: Authorization Bypass Through User-Controlled Key

Primary references