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CVE-2026-44596Yamcs: No Rate Limiting on Authentication Endpoint
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.
9.8 CRITICALEPSS 2.06%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 6.5 | MEDIUM | 3.1GitHub_M (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Details
- CVE ID
- CVE-2026-44596
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Jul 16, 2026
- Last modified
- 2026-07-17 18:44 UTC
- Weaknesses
- CWE-307 · Improper Restriction of Excessive Authentication Attempts
Affected Products
As published by the CNA in the CVE record.
yamcsyamcs1 version range
- < 5.12.7
References
- github.com https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83
- github.com https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fc
- github.com https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7
- github.com https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0
- github.com https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4