Vulnerability in Yamcs

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 fail…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

  • Yamcs — versions < 5.12.7

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-44596?
CVE-2026-44596 is a medium-severity vulnerability in Yamcs, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 6.5/10. Published 2026-07-16.
How severe is CVE-2026-44596?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2026-44596 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.