CVE-2023-34247 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in @keystone-6/auth. A fix is available for @keystone-6/auth — see the affected versions and patch details below.
@keystone-6/auth Open Redirect vulnerability
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-34247.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@keystone-6/authnpmDescription
Summary
There is an open redirect in the @keystone-6/auth package, where the redirect leading / filter can be bypassed.
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.
Mitigations
- Don't use the
@keystone-6/authpackage
References
- CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
- OWASP: Unvalidated Redirects and Forwards Cheat Sheet
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.
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Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @keystone-6/auth | all versions | 7.0.0npm install @keystone-6/auth@7.0.0 |
Affected Products
keystonekeystonejsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @keystone-6/auth, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @keystone-6/auth to 7.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-34247 is resolved across your whole dependency graph.
Workarounds
Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.
Frequently Asked Questions
Is CVE-2023-34247 in your dependencies?
Find it across npm, including transitive dependencies.