{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a56a5b78ef931b1d1391c9898bf735a5b4323ec9"
            }
          ],
          "repo": "https://github.com/nicolargo/glances",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hhcg-r27j-fhv9"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-346"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32632.json"
  },
  "details": "Glances is an open-source system cross-platform monitoring tool. Glances recently added DNS rebinding protection for the MCP endpoint, but prior to version 4.5.2, the main REST/WebUI FastAPI application still accepts arbitrary `Host` headers and does not apply `TrustedHostMiddleware` or an equivalent host allowlist. As a result, the REST API, WebUI, and token endpoint remain reachable through attacker-controlled domains in classic DNS rebinding scenarios. Once the victim browser has rebound the attacker domain to the Glances service, same-origin policy no longer protects the API because the browser considers the rebinding domain to be the origin. This is a distinct issue from the previously reported default CORS weakness. CORS is not required for exploitation here because DNS rebinding causes the victim browser to treat the malicious domain as same-origin with the rebinding target. Version 4.5.2 contains a patch for the issue.",
  "id": "CVE-2026-32632",
  "modified": "2026-04-01T23:08:30.704972294Z",
  "published": "2026-03-18T17:47:25.929Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nicolargo/glances/releases/tag/v4.5.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32632.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32632"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding"
}