CVE-2026-44596
Yamcs: No Rate Limiting on Authentication Endpoint
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jul 16, 2026
- Updated
- Jul 17, 2026
- Reserved
- May 6, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-307 Improper Restriction of Excessive Authentication Attempts
Affected Products
| Product | Versions |
|---|---|
yamcsyamcs |
|
References
- https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4
- 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
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