Vulnerability Description
evolution-api through 2.3.7 contains an incorrect array comparison in the metricsIPWhitelist middleware that always evaluates to false, allowing unauthenticated access to the /metrics endpoint. Attackers can bypass IP whitelist restrictions to access sensitive metrics disclosing server version, database client name, configured server URL, and WhatsApp instance details.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/evolution-foundation/evolution-api
- https://github.com/evolution-foundation/evolution-api/blob/2.3.7/src/api/routes/
- https://github.com/geo-chen/oss/blob/main/evolution-api.md
- https://www.vulncheck.com/advisories/evolution-api-through-2.3.7-prometheus-metr
FAQ
What is CVE-2026-91997?
CVE-2026-91997 is a vulnerability with a CVSS score of 5.3 (MEDIUM). evolution-api through 2.3.7 contains an incorrect array comparison in the metricsIPWhitelist middleware that always evaluates to false, allowing unauthenticated access to the /metrics endpoint. Attack...
How severe is CVE-2026-91997?
CVE-2026-91997 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-91997?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.