Summary
Go package github.com/edgelesssys/marblerun CLI commands susceptible to MITM attacks
Workarounds
Directly using the REST API of the Coordinator and manually verifying and pinning the certificate to a set Manifest avoids the issue.
Impact
Any CLI command issued to a Coordinator after the Manifest has been set, is susceptible to be redirected to another MarbleRun Coordinator instance, which runs the same binary, but potentially a different manifest.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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The issue has been patched in v1.4.0
Frequently Asked Questions
- What is GHSA-J3RQ-4XJW-XG63? GHSA-J3RQ-4XJW-XG63 is a high-severity security vulnerability in github.com/edgelesssys/marblerun (go), affecting versions < 1.4.0. It is fixed in 1.4.0.
- Which versions of github.com/edgelesssys/marblerun are affected by GHSA-J3RQ-4XJW-XG63? github.com/edgelesssys/marblerun (go) versions < 1.4.0 is affected.
- Is there a fix for GHSA-J3RQ-4XJW-XG63? Yes. GHSA-J3RQ-4XJW-XG63 is fixed in 1.4.0. Upgrade to this version or later.
- Is GHSA-J3RQ-4XJW-XG63 exploitable, and should I be worried? Whether GHSA-J3RQ-4XJW-XG63 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-J3RQ-4XJW-XG63 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-J3RQ-4XJW-XG63? Upgrade
github.com/edgelesssys/marblerunto 1.4.0 or later.