Missing Authorization Affecting org.yamcs:yamcs-core package, versions [,5.12.8)[5.13.0,5.13.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGYAMCS-19428662
- published29 Aug 2026
- disclosed28 Aug 2026
- creditUnknown
Introduced: 28 Aug 2026
NewCVE-2026-55545 (opens in a new tab)How to fix?
Upgrade org.yamcs:yamcs-core to version 5.12.8, 5.13.2 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization in the WebSocket subscription handlers for packets, algorithm-status, and mdb-changes. An attacker can access sensitive data by subscribing to these WebSocket topics without the privilege checks that are enforced in the REST API counterparts.