What is CVE-2023-34247?

CVE-2023-34247 is a medium-severity open redirect vulnerability in @keystone-6/auth (npm), affecting versions < 7.0.0. It is fixed in 7.0.0. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.

How severe is CVE-2023-34247?

CVE-2023-34247 has a CVSS score of 6.1 (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 @keystone-6/auth are affected by CVE-2023-34247?

@keystone-6/auth (npm) versions < 7.0.0 is affected.

Is there a fix for CVE-2023-34247?

Yes. CVE-2023-34247 is fixed in 7.0.0. Upgrade to this version or later.

Is CVE-2023-34247 exploitable, and should I be worried?

Whether CVE-2023-34247 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-2023-34247 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-2023-34247 in @keystone-6/auth

Q: How severe is CVE-2023-34247?

CVE-2023-34247 has a CVSS score of 6.1 (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 @keystone-6/auth are affected by CVE-2023-34247?

@keystone-6/auth (npm) versions < 7.0.0 is affected.

Q: Is there a fix for CVE-2023-34247?

Yes. CVE-2023-34247 is fixed in 7.0.0. Upgrade to this version or later.

Q: Is CVE-2023-34247 exploitable, and should I be worried?

Whether CVE-2023-34247 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-2023-34247 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-2023-34247?

Upgrade @keystone-6/auth to 7.0.0 or later.

Summary

@keystone-6/auth Open Redirect vulnerability

There is an open redirect in the @keystone-6/auth package, where the redirect leading / filter can be bypassed.

Mitigations

Don't use the @keystone-6/auth package

References

Similar Vulnerability Reports

Credits

Thanks to morioka12 for reporting this problem.

If you have any questions around this security advisory, please don't hesitate to contact us at [email protected], or open an issue on GitHub.

If you have a security flaw to report for any software in this repository, please see our SECURITY policy.

Impact

Users may be redirected to domains other than the relative host, thereby it might be used by attackers to re-direct users to an unexpected location.

Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites. Typical impact: phishing and credential harvesting via a trusted domain.

CVE-2023-34247 has a CVSS score of 6.1 (Medium). The vector is reachable from an adjacent network, low 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 (7.0.0); upgrading removes the vulnerable code path.

Affected versions

@keystone-6/auth (< 7.0.0)

Security releases

@keystone-6/auth → 7.0.0 (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

Upgrade @keystone-6/auth to 7.0.0 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2023-34247? CVE-2023-34247 is a medium-severity open redirect vulnerability in @keystone-6/auth (npm), affecting versions < 7.0.0. It is fixed in 7.0.0. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.
How severe is CVE-2023-34247? CVE-2023-34247 has a CVSS score of 6.1 (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 @keystone-6/auth are affected by CVE-2023-34247? @keystone-6/auth (npm) versions < 7.0.0 is affected.
Is there a fix for CVE-2023-34247? Yes. CVE-2023-34247 is fixed in 7.0.0. Upgrade to this version or later.
Is CVE-2023-34247 exploitable, and should I be worried? Whether CVE-2023-34247 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-2023-34247 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-2023-34247? Upgrade @keystone-6/auth to 7.0.0 or later.

Other vulnerabilities in @keystone-6/auth

CVE-IDSeverityPackage summary

CVE-2022-0087High@keystone-6/auth: Reflected cross-site scripting (XSS) vulnerability