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CVE-2026-44595
MEDIUM(4.3)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Risk Signal Score21/100 — NIEDRIG
- CVSS 4.3 — Mittel
- Weniger als 24 Stunden alt
Beschreibung
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.
GitHub Advisories
GHSA-p2rj-mrmc-9w29MEDIUM
Yamcs vulnerable to unauthorized user enumeration via IAM API endpoints
maven/org.yamcs:yamcs-core→ 5.12.7
GitHub AdvisoryReferenzen
- https://github.com/yamcs/yamcs/commit/0e12b518f103f24681299318a30a460fe4327b88
- https://github.com/yamcs/yamcs/commit/e90099fba98e96214217c195b6a5b87b5f46e51c
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0
- https://github.com/yamcs/yamcs/security/advisories/GHSA-p2rj-mrmc-9w29