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evolution-api through 2.3.7 Prometheus Metrics IP Allowlist Bypass

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-91997

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-91997

evolution-api

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/evolution-foundation/evolution-api",
    "vendor": "evolution-foundation",
    "product": "evolution-api",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "2.3.7"
      }
    ],
    "packageURL": "pkg:github/evolution-foundation/evolution-api",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-91997

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#1677 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement