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xdg-utils — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2022-4055

When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.

Products
xdg-utils
Affected versions
1.1.3-4.1, 1.2.1-1, 1.2.1-2
Fixed versions
Not specified
CVEs
CVE-2022-4055
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 15:21 UTC · Revision 1

Source evidence

DEBIAN-CVE-2022-4055

core-osv · Original source

Published 19 Nov 2022, 00:15 UTC

When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.

osv:DEBIAN-CVE-2022-4055

xdg-utils

Fixed versions: Not specified

xdg-utils

Fixed versions: Not specified

xdg-utils

Fixed versions: Not specified

Complete source record
{
  "id": "0f1650278199076a40a493688bfa2b7f8b82994052e38d27778a02ae22d5cefd",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2022-4055",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2022-4055",
    "summary": "When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.",
    "evidence": "osv:DEBIAN-CVE-2022-4055",
    "products": [
      {
        "name": {
          "value": "xdg-utils",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.1.3-4.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.2.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.2.1-2",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "xdg-utils",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.2.1-2",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "xdg-utils",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.2.1-2",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2022-4055",
      "aliases": [
        "DEBIAN-CVE-2022-4055"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "xdg-utils",
            "purl": "pkg:deb/debian/xdg-utils?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1.1.3-4.1",
            "1.2.1-1",
            "1.2.1-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4055.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "xdg-utils",
            "purl": "pkg:deb/debian/xdg-utils?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "1.2.1-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4055.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "xdg-utils",
            "purl": "pkg:deb/debian/xdg-utils?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "1.2.1-2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-4055.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-15T08:02:54.384048568Z",
      "provider": "osv",
      "upstream": [
        "CVE-2022-4055"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2022-4055"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2022-4055",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 324558,
  "published_at": "2022-11-19T00:15:31.003+00:00"
}