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DEBIAN-CVE-2026-33533

Type: advisorySource: OSV1 source record

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.3, the Glances XML-RPC server (activated with glances -s or glances --server) sends Access-Control-Allow-Origin: * on every HTTP response. Because the XML-RPC handler does not validate the Content-Type header, an attacker-controlled webpage can issue a CORS "simple request" (POST with Content-Type: text/plain) containing a valid XML-RPC payload. The browser sends the request without a preflight check, the server processes the XML body and returns the full system monitoring dataset, and the wildcard CORS header lets the attacker's JavaScript read the response. The result is complete exfiltration of hostname, OS version, IP addresses, CPU/memory/disk/network stats, and the full process list including command lines (which often contain tokens, passwords, or internal paths). This issue has been patched in version 4.5.3.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-33533

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-2026-33533

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

4.5.2+dfsg-1

Source reference: /affected/2/versions

Fixed versions
4.5.3.2+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-2026-33533.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-2026-33533.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.5.3.2+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",
      "4.5.2+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33533.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56393 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement