CVE-2026-44596

Yamcs has No Rate Limiting on Authentication Endpoint

Published 16 Jul 2026Modified 17 Jul 2026CWE 307

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (medium).

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.

Affected packages and fixed versions

Source	Package	Fixed in
maven::GitHub Security Advisory Maven	org.yamcs:yamcs-core	5.12.7

References

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