What is CVE-2023-7078?

CVE-2023-7078 is a high-severity server-side request forgery (SSRF) vulnerability in miniflare (npm), affecting versions >= 3.20230821.0, < 3.20231030.2. It is fixed in 3.20231030.2. Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside.

How severe is CVE-2023-7078?

CVE-2023-7078 has a CVSS score of 7.5 (High). 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 miniflare are affected by CVE-2023-7078?

miniflare (npm) versions >= 3.20230821.0, < 3.20231030.2 is affected.

Is there a fix for CVE-2023-7078?

Yes. CVE-2023-7078 is fixed in 3.20231030.2. Upgrade to this version or later.

Is CVE-2023-7078 exploitable, and should I be worried?

Whether CVE-2023-7078 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-2023-7078 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-2023-7078?

Upgrade miniflare to 3.20231030.2 or later.

CVE-2023-7078 in miniflare

Q: How severe is CVE-2023-7078?

CVE-2023-7078 has a CVSS score of 7.5 (High). 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 miniflare are affected by CVE-2023-7078?

miniflare (npm) versions >= 3.20230821.0, < 3.20231030.2 is affected.

Q: Is there a fix for CVE-2023-7078?

Yes. CVE-2023-7078 is fixed in 3.20231030.2. Upgrade to this version or later.

Q: Is CVE-2023-7078 exploitable, and should I be worried?

Whether CVE-2023-7078 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-2023-7078 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-2023-7078?

Upgrade miniflare to 3.20231030.2 or later.

Summary

Miniflare vulnerable to Server-Side Request Forgery (SSRF)

Workarounds

Ensure Miniflare is configured to listen on just local interfaces. This is the default behaviour, but can also be configured with the host: "127.0.0.1" option.

References

https://github.com/cloudflare/workers-sdk/pull/4532

Impact

Sending specially crafted HTTP requests to Miniflare's server could result in arbitrary HTTP and WebSocket requests being sent from the server. If Miniflare was configured to listen on external network interfaces (as was the default in wrangler until 3.19.0), an attacker on the local network could access other local servers.

Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside. Typical impact: access to internal metadata services, internal APIs, or cloud credentials.

CVE-2023-7078 has a CVSS score of 7.5 (High). The vector is reachable from an adjacent network, no privileges required, and user interaction required. 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 (3.20231030.2); upgrading removes the vulnerable code path.

Affected versions

miniflare (>= 3.20230821.0, < 3.20231030.2)

Security releases

miniflare → 3.20231030.2 (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 was fixed in [email protected].

Frequently Asked Questions

What is CVE-2023-7078? CVE-2023-7078 is a high-severity server-side request forgery (SSRF) vulnerability in miniflare (npm), affecting versions >= 3.20230821.0, < 3.20231030.2. It is fixed in 3.20231030.2. Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside.
How severe is CVE-2023-7078? CVE-2023-7078 has a CVSS score of 7.5 (High). 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 miniflare are affected by CVE-2023-7078? miniflare (npm) versions >= 3.20230821.0, < 3.20231030.2 is affected.
Is there a fix for CVE-2023-7078? Yes. CVE-2023-7078 is fixed in 3.20231030.2. Upgrade to this version or later.
Is CVE-2023-7078 exploitable, and should I be worried? Whether CVE-2023-7078 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-2023-7078 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-2023-7078? Upgrade miniflare to 3.20231030.2 or later.