Vulnerability Details CVE-2026-44596
Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttling, so an unauthenticated remote attacker could perform unlimited password-guessing attempts against any user account, significantly increasing the risk of successful brute-force attacks. This issue is fixed in versions 5.12.7 and 5.13.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.018
EPSS Ranking 75.7%
CVSS Severity
CVSS v3 Score 6.5
References
- https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83
- https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc
- 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-w5r6-mcgq-7pq4
- https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4
Products affected by CVE-2026-44596
-
cpe:2.3:a:spaceapplications:yamcs:5.8.6