CVE-2026-44596
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.06% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-307
- Affected
- spaceapplications/yamcs
- Source
- security-advisories@github.com
References
- https://github.com/yamcs/yamcs/commit/309218c651680f79df11a8d0f8628f7033f98a83Patch
- https://github.com/yamcs/yamcs/commit/64392df531fbcbc65f19ee5724c4c23d289f49fcPatch
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.7Release Notes
- https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.0Release Notes
- https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4Exploit, Vendor Advisory
- https://github.com/yamcs/yamcs/security/advisories/GHSA-w5r6-mcgq-7pq4Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.