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Medium

Gnome-shell: screenshot tool allows viewing open windows when session is locked

Type: advisorySources: OSV

A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-43090
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 08:49 UTC · Revision 1

Source evidence

Gnome-shell: screenshot tool allows viewing open windows when session is locked

core-osv · Original source

Published 22 Sept 2023, 05:02 UTC

A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.

osv:CVE-2023-43090
Complete source record
{
  "id": "88c3dbcdb7f85ee33e87119f0d0037968b3297bf3944a0281559bc9ab3b2acac",
  "url": "https://osv.dev/vulnerability/CVE-2023-43090",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Gnome-shell: screenshot tool allows viewing open windows when session is locked",
    "summary": "A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.",
    "evidence": "osv:CVE-2023-43090",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-43090",
      "aliases": [
        "CVE-2023-43090"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gnome/gnome-shell",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0bd73b79a630ad1354bae3ccd69beaeba2f74d4b"
                },
                {
                  "fixed": "45de25eaba51095a223e4123d10183432660f4b2"
                },
                {
                  "introduced": "b6a7cac28ff84fdaa99be08b64b0ff50b6cf4894"
                },
                {
                  "fixed": "d49cc6fa355d59d3a4c878ae89885cb1c571bfda"
                },
                {
                  "introduced": "44b4b02c3f772a50e6f8b8fd2dca6d9dc3a98725"
                },
                {
                  "last_affected": "44b4b02c3f772a50e6f8b8fd2dca6d9dc3a98725"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "43"
                      },
                      {
                        "fixed": "43.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "44"
                      },
                      {
                        "fixed": "44.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:42:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "42"
                      },
                      {
                        "last_affected": "42"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            },
            {
              "repo": "https://gitlab.gnome.org/gnome/gnome-shell",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0bd73b79a630ad1354bae3ccd69beaeba2f74d4b"
                },
                {
                  "fixed": "45de25eaba51095a223e4123d10183432660f4b2"
                },
                {
                  "introduced": "b6a7cac28ff84fdaa99be08b64b0ff50b6cf4894"
                },
                {
                  "fixed": "d49cc6fa355d59d3a4c878ae89885cb1c571bfda"
                },
                {
                  "introduced": "44b4b02c3f772a50e6f8b8fd2dca6d9dc3a98725"
                },
                {
                  "last_affected": "44b4b02c3f772a50e6f8b8fd2dca6d9dc3a98725"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "43"
                      },
                      {
                        "fixed": "43.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "44"
                      },
                      {
                        "fixed": "44.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome-shell:42:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "42"
                      },
                      {
                        "last_affected": "42"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "42",
            "43.8",
            "44.4",
            "43.7",
            "44.3",
            "43.6",
            "44.2",
            "43.5",
            "44.1",
            "43.4",
            "44.0",
            "43.3",
            "43.2",
            "43.1",
            "43.0",
            "42.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-43090.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.263884589Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/security/cve/CVE-2023-43090",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43090.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-43090",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2239087",
        "https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990",
        "https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944",
        "https://gitlab.gnome.org/GNOME/gnome-shell"
      ],
      "provider_metadata": {
        "cna_assigner": "fedora",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43090.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-43090",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493971,
  "published_at": "2023-09-22T05:02:08.801+00:00"
}