{"id":"USN-8011-1","summary":"emacs vulnerabilities","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)","modified":"2026-04-27T17:58:39.035435Z","published":"2026-02-04T09:51:13Z","related":["UBUNTU-CVE-2024-53920","UBUNTU-CVE-2025-1244"],"upstream":["CVE-2024-53920","CVE-2025-1244","UBUNTU-CVE-2024-53920","UBUNTU-CVE-2025-1244"],"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"}],"affected":[{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/emacs@1:26.3+1-1ubuntu2+esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:26.3+1-1ubuntu2+esm2"}]}],"versions":["1:26.3+1-1ubuntu1","1:26.3+1-1ubuntu2","1:26.3+1-1ubuntu2+esm1"],"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"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2024-53920","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"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"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8011-1.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/emacs@1:27.1+1-3ubuntu5.2+esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:27.1+1-3ubuntu5.2+esm1"}]}],"versions":["1:27.1+1-3ubuntu3","1:27.1+1-3ubuntu5","1:27.1+1-3ubuntu5.1","1:27.1+1-3ubuntu5.2"],"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"}]},"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"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8011-1.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/emacs@1:29.3+1-1ubuntu2+esm3?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:29.3+1-1ubuntu2+esm3"}]}],"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"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1:29.3+1-1ubuntu2+esm3","binary_name":"emacs"},{"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_version":"1:29.3+1-1ubuntu2+esm3","binary_name":"emacs-gtk"},{"binary_version":"1:29.3+1-1ubuntu2+esm3","binary_name":"emacs-lucid"},{"binary_name":"emacs-nox","binary_version":"1:29.3+1-1ubuntu2+esm3"},{"binary_name":"emacs-pgtk","binary_version":"1:29.3+1-1ubuntu2+esm3"}]},"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"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8011-1.json"}}],"schema_version":"1.7.5"}