{"id":"CVE-2026-91997","title":"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","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 restricti…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-697"],"vendor":"evolution-foundation","product":"evolution-api","affected":["evolution-api <= 2.3.7"],"published":"2026-09-15","updated":"2026-09-15","sourceUpdated":"2026-09-15T12:17:55.240","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91997","references":[{"url":"https://github.com/evolution-foundation/evolution-api","label":"disclosure@vulncheck.com"},{"url":"https://github.com/evolution-foundation/evolution-api/blob/2.3.7/src/api/routes/index.router.ts#L49-L65","label":"disclosure@vulncheck.com"},{"url":"https://github.com/geo-chen/oss/blob/main/evolution-api.md","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/evolution-api-through-2.3.7-prometheus-metrics-ip-allowlist-bypass","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-15T11:54:50.613929Z"},"ingestedAt":"2026-09-15T12:36:50.174Z","epss":0.00337,"epssPercentile":0.27074,"slug":"CVE-2026-91997","body":"## Overview\n\nevolution-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}