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DEBIAN-CVE-2026-46608

Type: advisorySource: OSV1 source record

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server (glances -s) introduced a configurable CORS origin list in version 4.5.3 as a mitigation for CVE-2026-33533. However, the implementation silently falls back to Access-Control-Allow-Origin: * whenever cors_origins contains more than one entry. An operator who configures an explicit two-entry allowlist (e.g. two internal dashboard origins) intending to restrict browser access instead receives the unrestricted wildcard. A malicious web page served from any origin can issue a CORS simple request to /RPC2 and read the full system monitoring dataset without the victim's knowledge. This vulnerability is fixed in 4.5.5.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-46608

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-2026-46608

glances

Source reference: /affected/0/package/name

Affected 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

Fixed versions
4.5.5+dfsg-1

Source reference: /affected/1/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=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-2026-46608.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "4.5.5+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",
      "4.5.3.2+dfsg-1",
      "4.5.4+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-46608.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56557 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement