Arbitrary Code Injection Affecting org.yamcs:yamcs-core package, versions [,5.12.7)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Arbitrary Code Injection vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JAVA-ORGYAMCS-17230148
- published8 Jun 2026
- disclosed27 May 2026
- creditPablo Picurelli Ortiz
Introduced: 27 May 2026
NewCVE-2026-44632 (opens in a new tab)How to fix?
Upgrade org.yamcs:yamcs-core to version 5.12.7 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary Code Injection in the JavaExprAlgorithmExecutionFactory process. An attacker can execute arbitrary code on the underlying operating system by injecting malicious Java expressions through the REST API when authenticated with the ChangeMissionDatabase privilege.
Note:
This is only exploitable if the attacker possesses valid credentials with the required privilege and can access a running instance with an active processor.