CVE-2026-44595Yamcs is a mission control framework.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
spaceapplications yamcs spaceapplications:yamcs | before 5.12.7 | NVD |
References
- https://github.com/yamcs/yamcs/commit/0e12b518f103f24681299318a30a460fe4327b88patch
- https://github.com/yamcs/yamcs/commit/e90099fba98e96214217c195b6a5b87b5f46e51cpatch
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7release-notes
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0release-notes
- https://github.com/yamcs/yamcs/security/advisories/GHSA-p2rj-mrmc-9w29exploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.