CVE-2026-44596 EXPLOIT
6.5
MEDIUM · CVSS 3.1 · EPSS 2.1% (pctl 81)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 6.5 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| EPSS | 2.06% — more likely to be exploited than 81% of all CVEs |
| Weakness | CWE-307 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2026-07-16 |
| Last modified | 2026-07-17 |
Affected (1)
| Vendor | Product |
|---|---|
| spaceapplications | yamcs |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | YAMCS yamcs-core 5.12.7 - No Rate Limiting | 2026-05-30 |
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
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