What is CVE-2024-47762?

CVE-2024-47762 is a medium-severity security vulnerability in @backstage/plugin-app-backend (npm), affecting versions < 0.3.75. It is fixed in 0.3.75.

How severe is CVE-2024-47762?

CVE-2024-47762 has a CVSS score of 5.8 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of @backstage/plugin-app-backend are affected by CVE-2024-47762?

@backstage/plugin-app-backend (npm) versions < 0.3.75 is affected.

Is there a fix for CVE-2024-47762?

Yes. CVE-2024-47762 is fixed in 0.3.75. Upgrade to this version or later.

Is CVE-2024-47762 exploitable, and should I be worried?

Whether CVE-2024-47762 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.

What actually determines whether CVE-2024-47762 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 CVE-2024-47762?

Upgrade @backstage/plugin-app-backend to 0.3.75 or later.

CVE-2024-47762 in @backstage/plugin-app-backend

Q: How severe is CVE-2024-47762?

CVE-2024-47762 has a CVSS score of 5.8 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of @backstage/plugin-app-backend are affected by CVE-2024-47762?

@backstage/plugin-app-backend (npm) versions < 0.3.75 is affected.

Q: Is there a fix for CVE-2024-47762?

Yes. CVE-2024-47762 is fixed in 0.3.75. Upgrade to this version or later.

Q: Is CVE-2024-47762 exploitable, and should I be worried?

Whether CVE-2024-47762 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.

Q: What actually determines whether CVE-2024-47762 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.

Q: How do I fix CVE-2024-47762?

Upgrade @backstage/plugin-app-backend to 0.3.75 or later.

Summary

Unexpected visibility of environment variable configurations in @backstage/plugin-app-backend

Workarounds

As a temporary measure, avoid supplying secrets using the APP_CONFIG_ configuration pattern. Consider alternative methods for setting secrets, such as the environment substitution available for Backstage configuration.

References

If you have any questions or comments about this advisory:

Open an issue in the Backstage repository
Visit our Discord, linked to in Backstage README

Impact

Configuration supplied through APP_CONFIG_* environment variables, for example APP_CONFIG_backend_listen_port=7007, where unexpectedly ignoring the visibility defined in configuration schema. This occurred even if the configuration schema specified that they should have backend or secret visibility. This was an intended feature of the APP_CONFIG_* way of supplying configuration, but now clearly goes against the expected behavior of the configuration system. This behavior leads to a risk of potentially exposing sensitive configuration details intended to remain private or restricted to backend processes.

CVE-2024-47762 has a CVSS score of 5.8 (Medium). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.3.75); upgrading removes the vulnerable code path.

Affected versions

@backstage/plugin-app-backend (< 0.3.75)

Security releases

@backstage/plugin-app-backend → 0.3.75 (npm)

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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Remediation advice

The issue has been resolved in version 0.3.75 of the @backstage/plugin-app-backend package. Users are encouraged to upgrade to this version to mitigate the vulnerability.

Frequently Asked Questions

What is CVE-2024-47762? CVE-2024-47762 is a medium-severity security vulnerability in @backstage/plugin-app-backend (npm), affecting versions < 0.3.75. It is fixed in 0.3.75.
How severe is CVE-2024-47762? CVE-2024-47762 has a CVSS score of 5.8 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of @backstage/plugin-app-backend are affected by CVE-2024-47762? @backstage/plugin-app-backend (npm) versions < 0.3.75 is affected.
Is there a fix for CVE-2024-47762? Yes. CVE-2024-47762 is fixed in 0.3.75. Upgrade to this version or later.
Is CVE-2024-47762 exploitable, and should I be worried? Whether CVE-2024-47762 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 CVE-2024-47762 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 CVE-2024-47762? Upgrade @backstage/plugin-app-backend to 0.3.75 or later.