Which versions of node-krb5 are affected by CVE-2016-1000238?

node-krb5 (npm) versions >= 0.0.0 is affected.

Is there a fix for CVE-2016-1000238?

No fixed version is listed for CVE-2016-1000238 yet. Monitor the advisory for updates and apply mitigations in the interim.

Is CVE-2016-1000238 exploitable, and should I be worried?

Whether CVE-2016-1000238 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-2016-1000238 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.

CVE-2016-1000238 in node-krb5

CVE-2016-1000238

CVE-2016-1000238 is a medium-severity security vulnerability in node-krb5 (npm), affecting versions >= 0.0.0. No fixed version is listed yet.

Does this CVE actually affect you?

Kodem shows which CVEs are reachable and running in your applications, so you fix what's exploitable, not just what's listed.

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Runtime intelligence, not another scanner.

Summary

Spoofing attack due to unvalidated KDC in node-krb5

Affected versions of node-krb5 do not validate the KDC prior to authenticating, which might allow an attacker with network access and enough time to spoof the KDC and impersonate a valid user without knowing their credentials.

Impact

Affected versions

node-krb5 (>= 0.0.0)

Security releases

Not available

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

It appears that this will remain unfixed indefinitely, as the Github issue for this vulnerability has been open since 2015, with no work on it since then.

At this time, the best available mitigation is to use an alternative module that is actively maintained and provides similar functionality. There are multiple modules fitting this criteria available on npm..

Frequently Asked Questions

What is CVE-2016-1000238? CVE-2016-1000238 is a medium-severity security vulnerability in node-krb5 (npm), affecting versions >= 0.0.0. No fixed version is listed yet.
Which versions of node-krb5 are affected by CVE-2016-1000238? node-krb5 (npm) versions >= 0.0.0 is affected.
Is there a fix for CVE-2016-1000238? No fixed version is listed for CVE-2016-1000238 yet. Monitor the advisory for updates and apply mitigations in the interim.
Is CVE-2016-1000238 exploitable, and should I be worried? Whether CVE-2016-1000238 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-2016-1000238 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.