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DEBIAN-CVE-2026-32632

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-32632

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: osv:DEBIAN-CVE-2026-32632

glances

Source reference: /affected/0/package/name

Affected versions
3.3.1.1+dfsg-1

Source reference: /affected/0/versions

3.4.0.3+dfsg-1

Source reference: /affected/0/versions

4.0.5+dfsg-1

Source reference: /affected/0/versions

4.1.2.1+dfsg-1

Source reference: /affected/0/versions

4.2.1+dfsg-1

Source reference: /affected/0/versions

4.3.0.8+dfsg-1

Source reference: /affected/0/versions

4.3.1+dfsg-1

Source reference: /affected/0/versions

4.3.3+dfsg-1

Source reference: /affected/0/versions

4.5.1+dfsg-1

Source reference: /affected/0/versions

4.5.2+dfsg-1

Source reference: /affected/0/versions

4.5.3.2+dfsg-1

Source reference: /affected/0/versions

4.5.4+dfsg-1

Source reference: /affected/0/versions

4.5.5+dfsg-1

Source reference: /affected/0/versions

4.5.6+dfsg-1

Source reference: /affected/0/versions

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

glances

Source reference: /affected/1/package/name

Affected versions
4.3.1+dfsg-1

Source reference: /affected/1/versions

4.3.3+dfsg-1

Source reference: /affected/1/versions

4.5.1+dfsg-1

Source reference: /affected/1/versions

4.5.2+dfsg-1

Source reference: /affected/1/versions

4.5.3.2+dfsg-1

Source reference: /affected/1/versions

4.5.4+dfsg-1

Source reference: /affected/1/versions

4.5.5+dfsg-1

Source reference: /affected/1/versions

4.5.6+dfsg-1

Source reference: /affected/1/versions

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

glances

Source reference: /affected/2/package/name

Affected versions
4.3.1+dfsg-1

Source reference: /affected/2/versions

4.3.3+dfsg-1

Source reference: /affected/2/versions

4.5.1+dfsg-1

Source reference: /affected/2/versions

Fixed versions
4.5.2+dfsg-1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "glances",
      "purl": "pkg:deb/debian/glances?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "3.3.1.1+dfsg-1",
      "3.4.0.3+dfsg-1",
      "4.0.5+dfsg-1",
      "4.1.2.1+dfsg-1",
      "4.2.1+dfsg-1",
      "4.3.0.8+dfsg-1",
      "4.3.1+dfsg-1",
      "4.3.3+dfsg-1",
      "4.5.1+dfsg-1",
      "4.5.2+dfsg-1",
      "4.5.3.2+dfsg-1",
      "4.5.4+dfsg-1",
      "4.5.5+dfsg-1",
      "4.5.6+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-32632.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "glances",
      "purl": "pkg:deb/debian/glances?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "4.3.1+dfsg-1",
      "4.3.3+dfsg-1",
      "4.5.1+dfsg-1",
      "4.5.2+dfsg-1",
      "4.5.3.2+dfsg-1",
      "4.5.4+dfsg-1",
      "4.5.5+dfsg-1",
      "4.5.6+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-32632.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.5.2+dfsg-1"
          }
        ]
      }
    ],
    "package": {
      "name": "glances",
      "purl": "pkg:deb/debian/glances?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "4.3.1+dfsg-1",
      "4.3.3+dfsg-1",
      "4.5.1+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-32632.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56390 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement