4.3

CVE-2026-44595

Exploit

Yamcs: Unauthorized user enumeration via IAM API endpoints

Yamcs is a mission control framework. Prior to 5.12.7, the IAM API endpoints listUsers, getUser, listGroups, and getGroup in yamcs-core did not enforce the required SystemPrivilege.ControlAccess check in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java, so any authenticated user, even one with low or no privileges, could enumerate all user accounts in the system including their usernames, superuser status, and group memberships. This issue is fixed in versions 5.12.7 and 5.13.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Spaceapplications ≫ Yamcs Version < 5.12.7
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.98% 0.587
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7
Release Notes
https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0
Release Notes
https://github.com/yamcs/yamcs/security/advisories/GHSA-p2rj-mrmc-9w29
Vendor Advisory
Exploit
https://github.com/yamcs/yamcs/commit/0e12b518f103f24681299318a30a460fe4327b88
Patch
https://github.com/yamcs/yamcs/commit/e90099fba98e96214217c195b6a5b87b5f46e51c
Patch