usn-8011-1
Vulnerability from osv_ubuntu
Published
2026-02-04 09:51
Modified
2026-04-27 14:11
Summary
emacs vulnerabilities
Details

It was discovered that Emacs could trigger unsafe Lisp macro expansion, when a user invoked elisp-completion-at-point on untrusted Emacs Lisp source code. An attacker could possibly use this issue to execute arbitrary code. (CVE-2024-53920)

It was discovered that Emacs did not properly sanitize input when handling certain URI schemes. An attacker could possibly use this issue to execute arbitrary shell commands by tricking a user into opening a specially crafted URL. (CVE-2025-1244)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-53920",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-1244",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "emacs",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-bin-common",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-common",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-el",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-gtk",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-lucid",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          },
          {
            "binary_name": "emacs-nox",
            "binary_version": "1:26.3+1-1ubuntu2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "emacs",
        "purl": "pkg:deb/ubuntu/emacs@1:26.3+1-1ubuntu2+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:26.3+1-1ubuntu2+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:26.3+1-1ubuntu1",
        "1:26.3+1-1ubuntu2",
        "1:26.3+1-1ubuntu2+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-53920",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-1244",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "emacs",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-bin-common",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-common",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-el",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-gtk",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-lucid",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          },
          {
            "binary_name": "emacs-nox",
            "binary_version": "1:27.1+1-3ubuntu5.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "emacs",
        "purl": "pkg:deb/ubuntu/emacs@1:27.1+1-3ubuntu5.2+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:27.1+1-3ubuntu5.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:27.1+1-3ubuntu3",
        "1:27.1+1-3ubuntu5",
        "1:27.1+1-3ubuntu5.1",
        "1:27.1+1-3ubuntu5.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-53920",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-1244",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "emacs",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-bin-common",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-common",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-el",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-gtk",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-lucid",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-nox",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          },
          {
            "binary_name": "emacs-pgtk",
            "binary_version": "1:29.3+1-1ubuntu2+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "emacs",
        "purl": "pkg:deb/ubuntu/emacs@1:29.3+1-1ubuntu2+esm3?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:29.3+1-1ubuntu2+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:29.1+1-5ubuntu1",
        "1:29.2+1-1ubuntu1",
        "1:29.2+1-2ubuntu4",
        "1:29.3+1-1ubuntu2",
        "1:29.3+1-1ubuntu2+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Emacs could trigger unsafe Lisp macro expansion,\nwhen a user invoked elisp-completion-at-point on untrusted Emacs Lisp \nsource code. An attacker could possibly use this issue to execute \narbitrary code. (CVE-2024-53920)\n\nIt was discovered that Emacs did not properly sanitize input when \nhandling certain URI schemes. An attacker could possibly use this issue\nto execute arbitrary shell commands by tricking a user into opening a \nspecially crafted URL. (CVE-2025-1244)",
  "id": "USN-8011-1",
  "modified": "2026-04-27T14:11:47Z",
  "published": "2026-02-04T09:51:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8011-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53920"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-1244"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "emacs vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2024-53920",
    "UBUNTU-CVE-2025-1244"
  ]
}



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