CVE Catalog

CVE-2026-91997

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.45%

36th percentile - higher than 36% of all known CVEs

Summary

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.

Risk Assessment

Unauthorized access to metrics can reveal infrastructure and configuration information, facilitating further attacks. The risk applies to all evolution-api deployments version ≤2.3.7 with a publicly accessible /metrics endpoint.

Recommendation

Upgrade evolution-api to a version later than 2.3.7 that fixes the array comparison. Restrict access to the /metrics endpoint at the network or reverse proxy level.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS