PatchTheCVECVE-2026-44596: Yamcs is a mission control framework
CVE-2026-44596 is a medium-severity flaw (CVSS 6.5) affecting yamcs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.1% (top 19%) |
| CISA exploited list | No |
| Weakness | CWE-307 |
| Published | 2026-07-16 |
| Last modified | 2026-07-17 |
Last updated 2026-07-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Exploit-DB: YAMCS yamcs-core 5.12.7 - No Rate Limiting
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-44596?
yamcs: upgrade to 5.12.7. Exact commands for each OS are on this page.
Is CVE-2026-44596 being exploited?
CVE-2026-44596 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-44596 affect?
CVE-2026-44596 affects yamcs. Severity is medium (CVSS 6.5). 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 faile
How urgent is CVE-2026-44596?
Priority 53/100. Public exploit reference; Remotely exploitable, no login, no user action
Software pages
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