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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- published29 Aug 2026
- disclosed28 Aug 2026
- creditUnknown
Introduced: 28 Aug 2026
NewCVE-2026-55547 (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 via the IamApi endpoints responsible for role and privilege enumeration. An attacker can access sensitive security configuration data by sending authenticated requests to GET /api/roles, GET /api/roles/{name}, or GET /api/privileges without possessing the necessary privileges. This enables the attacker to retrieve the full list of system privileges and role definitions, which can facilitate targeted privilege escalation attacks.