{"id":"CVE-2026-91997","aliases":["EUVD-2026-78437","GHSA-755x-c9g7-3hr7"],"status":"published","title":"evolution-api through 2.3.7 Prometheus Metrics IP Allowlist Bypass","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.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.0045,"percentile":0.39355,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-697"],"published":"2026-09-15T11:35:51Z","modified":"2026-10-28T02:30:50Z","products":[{"vendor":"evolution-foundation","product":"evolution-api"}],"references":[{"url":"https://github.com/geo-chen/oss/blob/main/evolution-api.md","tags":["third-party-advisory","exploit","evidence"]},{"url":"https://github.com/evolution-foundation/evolution-api/blob/2.3.7/src/api/routes/index.router.ts#L49-L65","tags":["technical-description","article"]},{"url":"https://github.com/evolution-foundation/evolution-api","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/evolution-api-through-2.3.7-prometheus-metrics-ip-allowlist-bypass","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91997","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-755x-c9g7-3hr7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91997.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-91997","title":"evolution-api through 2.3.7 Prometheus Metrics IP Allowlist Bypass","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.","status":"published","published":"2026-09-15T11:35:51.378Z","modified":"2026-09-24T14:22:36.625Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:19:53.115938Z"}],"euvd":[{"id":"EUVD-2026-78437","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.","status":"published","published":"2026-09-15T11:35:51Z","modified":"2026-09-24T14:22:36Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:57.035497Z"}],"ghsa":[{"id":"GHSA-755x-c9g7-3hr7","title":"evolution-api through 2.3.7 contains an incorrect array comparison in the metricsIPWhitelist...","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.","status":"published","published":"2026-09-15T12:31:47Z","modified":"2026-09-15T12:31:54Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T15:11:53.5286Z"}],"nvd":[{"id":"CVE-2026-91997","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.","status":"published","published":"2026-09-15T12:17:55.24Z","modified":"2026-09-24T20:43:32.537Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T14:12:47.668237Z"}],"osv":[{"id":"CVE-2026-91997","title":"evolution-api through 2.3.7 Prometheus Metrics IP Allowlist Bypass","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.","status":"published","published":"2026-09-15T11:35:51.378Z","modified":"2026-10-28T02:30:50.237859057Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-697"],"updated_at":"2026-11-02T15:45:20.269367Z"}]}}