{"id":"UBUNTU-CVE-2026-96269","details":"GNU Emacs 28.1 through 31.1 allows arbitrary code execution upon opening a file, because an untrusted value of read-symbol-shorthands affects the intern and unintern functions. This affects the default configuration; no particular user settings are required to trigger it.","modified":"2026-09-24T02:03:14.623407492Z","published":"2026-09-22T21:17:00Z","upstream":["CVE-2026-96269"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-96269"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-96269"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/08/20/3"},{"type":"REPORT","url":"https://eshelyaron.com/posts/2026-08-06-emacs-arbitrary-code-execution-returns.html"},{"type":"REPORT","url":"https://debbugs.gnu.org/cgi/bugreport.cgi?bug=80574#227"},{"type":"REPORT","url":"https://yhetil.org/emacs/jwvtsph1aoj.fsf-monnier+emacs@gnu.org/T/#m319545e835fb71d764bf868166632d4633167a75"}],"affected":[{"package":{"name":"emacs24","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/emacs24?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["24.5+1-1ubuntu2","24.5+1-1ubuntu4","24.5+1-1ubuntu5","24.5+1-1ubuntu6","24.5+1-1ubuntu7","24.5+1-6ubuntu1","24.5+1-6ubuntu1.1","24.5+1-6ubuntu1.1+esm1","24.5+1-6ubuntu1.1+esm2","24.5+1-6ubuntu1.1+esm3","24.5+1-6ubuntu1.1+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"emacs24","binary_version":"24.5+1-6ubuntu1.1+esm4"},{"binary_version":"24.5+1-6ubuntu1.1+esm4","binary_name":"emacs24-bin-common"},{"binary_version":"24.5+1-6ubuntu1.1+esm4","binary_name":"emacs24-common"},{"binary_name":"emacs24-el","binary_version":"24.5+1-6ubuntu1.1+esm4"},{"binary_name":"emacs24-lucid","binary_version":"24.5+1-6ubuntu1.1+esm4"},{"binary_version":"24.5+1-6ubuntu1.1+esm4","binary_name":"emacs24-nox"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.22-4ubuntu3","21.4.22-14ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21","binary_version":"21.4.22-14ubuntu1"},{"binary_version":"21.4.22-14ubuntu1","binary_name":"xemacs21-bin"},{"binary_version":"21.4.22-14ubuntu1","binary_name":"xemacs21-mule"},{"binary_version":"21.4.22-14ubuntu1","binary_name":"xemacs21-mule-canna-wnn"},{"binary_version":"21.4.22-14ubuntu1","binary_name":"xemacs21-nomule"},{"binary_name":"xemacs21-support","binary_version":"21.4.22-14ubuntu1"},{"binary_name":"xemacs21-supportel","binary_version":"21.4.22-14ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.2-2"},{"binary_name":"xemacs21-basesupport-el","binary_version":"2009.02.17.dfsg.2-2"},{"binary_name":"xemacs21-mulesupport","binary_version":"2009.02.17.dfsg.2-2"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"emacs25","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/emacs25?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["25.2+1-6","25.2+1-6ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"emacs25","binary_version":"25.2+1-6ubuntu0.1~esm2"},{"binary_version":"25.2+1-6ubuntu0.1~esm2","binary_name":"emacs25-bin-common"},{"binary_name":"emacs25-common","binary_version":"25.2+1-6ubuntu0.1~esm2"},{"binary_name":"emacs25-el","binary_version":"25.2+1-6ubuntu0.1~esm2"},{"binary_version":"25.2+1-6ubuntu0.1~esm2","binary_name":"emacs25-lucid"},{"binary_name":"emacs25-nox","binary_version":"25.2+1-6ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.24-4ubuntu1","21.4.24-5ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21","binary_version":"21.4.24-5ubuntu1"},{"binary_name":"xemacs21-bin","binary_version":"21.4.24-5ubuntu1"},{"binary_version":"21.4.24-5ubuntu1","binary_name":"xemacs21-mule"},{"binary_name":"xemacs21-mule-canna-wnn","binary_version":"21.4.24-5ubuntu1"},{"binary_name":"xemacs21-nomule","binary_version":"21.4.24-5ubuntu1"},{"binary_name":"xemacs21-support","binary_version":"21.4.24-5ubuntu1"},{"binary_version":"21.4.24-5ubuntu1","binary_name":"xemacs21-supportel"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.2-4"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.2-4"},{"binary_name":"xemacs21-basesupport-el","binary_version":"2009.02.17.dfsg.2-4"},{"binary_version":"2009.02.17.dfsg.2-4","binary_name":"xemacs21-mulesupport"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.2-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/emacs?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:26.3+1-1ubuntu1","1:26.3+1-1ubuntu2","1:26.3+1-1ubuntu2+esm1","1:26.3+1-1ubuntu2+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1:26.3+1-1ubuntu2+esm2","binary_name":"emacs"},{"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_version":"1:26.3+1-1ubuntu2+esm2","binary_name":"emacs-el"},{"binary_name":"emacs-gtk","binary_version":"1:26.3+1-1ubuntu2+esm2"},{"binary_version":"1:26.3+1-1ubuntu2+esm2","binary_name":"emacs-lucid"},{"binary_name":"emacs-nox","binary_version":"1:26.3+1-1ubuntu2+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.24-8build1","21.4.24-9"],"ecosystem_specific":{"binaries":[{"binary_version":"21.4.24-9","binary_name":"xemacs21"},{"binary_name":"xemacs21-bin","binary_version":"21.4.24-9"},{"binary_version":"21.4.24-9","binary_name":"xemacs21-mule"},{"binary_name":"xemacs21-mule-canna-wnn","binary_version":"21.4.24-9"},{"binary_name":"xemacs21-nomule","binary_version":"21.4.24-9"},{"binary_name":"xemacs21-support","binary_version":"21.4.24-9"},{"binary_name":"xemacs21-supportel","binary_version":"21.4.24-9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.2-4","2009.02.17.dfsg.2-5"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.2-5"},{"binary_name":"xemacs21-basesupport-el","binary_version":"2009.02.17.dfsg.2-5"},{"binary_version":"2009.02.17.dfsg.2-5","binary_name":"xemacs21-mulesupport"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.2-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.24-9ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"21.4.24-9ubuntu2","binary_name":"xemacs21"},{"binary_name":"xemacs21-bin","binary_version":"21.4.24-9ubuntu2"},{"binary_name":"xemacs21-mule","binary_version":"21.4.24-9ubuntu2"},{"binary_version":"21.4.24-9ubuntu2","binary_name":"xemacs21-mule-canna-wnn"},{"binary_name":"xemacs21-nomule","binary_version":"21.4.24-9ubuntu2"},{"binary_name":"xemacs21-support","binary_version":"21.4.24-9ubuntu2"},{"binary_name":"xemacs21-supportel","binary_version":"21.4.24-9ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.2-5"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.2-5"},{"binary_version":"2009.02.17.dfsg.2-5","binary_name":"xemacs21-basesupport-el"},{"binary_name":"xemacs21-mulesupport","binary_version":"2009.02.17.dfsg.2-5"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.2-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/emacs?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:27.1+1-3ubuntu3","1:27.1+1-3ubuntu5","1:27.1+1-3ubuntu5.1","1:27.1+1-3ubuntu5.2","1:27.1+1-3ubuntu5.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"emacs","binary_version":"1:27.1+1-3ubuntu5.2+esm1"},{"binary_version":"1:27.1+1-3ubuntu5.2+esm1","binary_name":"emacs-bin-common"},{"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_version":"1:27.1+1-3ubuntu5.2+esm1","binary_name":"emacs-nox"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.24-12","21.4.24-12build2","21.4.24-12build3"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21","binary_version":"21.4.24-12build3"},{"binary_version":"21.4.24-12build3","binary_name":"xemacs21-bin"},{"binary_name":"xemacs21-mule","binary_version":"21.4.24-12build3"},{"binary_name":"xemacs21-mule-canna-wnn","binary_version":"21.4.24-12build3"},{"binary_name":"xemacs21-nomule","binary_version":"21.4.24-12build3"},{"binary_name":"xemacs21-support","binary_version":"21.4.24-12build3"},{"binary_name":"xemacs21-supportel","binary_version":"21.4.24-12build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.3-2","2009.02.17.dfsg.3-3"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.3-3"},{"binary_version":"2009.02.17.dfsg.3-3","binary_name":"xemacs21-basesupport-el"},{"binary_version":"2009.02.17.dfsg.3-3","binary_name":"xemacs21-mulesupport"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.3-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/emacs?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","1:29.3+1-1ubuntu2+esm3"],"ecosystem_specific":{"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_version":"1:29.3+1-1ubuntu2+esm3","binary_name":"emacs-common"},{"binary_version":"1:29.3+1-1ubuntu2+esm3","binary_name":"emacs-el"},{"binary_name":"emacs-gtk","binary_version":"1:29.3+1-1ubuntu2+esm3"},{"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":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"emacs","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/emacs?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:30.1+1-9ubuntu1","1:30.2+1-1ubuntu2","1:30.2+1-2ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"emacs","binary_version":"1:30.2+1-2ubuntu1"},{"binary_name":"emacs-bin-common","binary_version":"1:30.2+1-2ubuntu1"},{"binary_version":"1:30.2+1-2ubuntu1","binary_name":"emacs-common"},{"binary_name":"emacs-el","binary_version":"1:30.2+1-2ubuntu1"},{"binary_version":"1:30.2+1-2ubuntu1","binary_name":"emacs-gtk"},{"binary_name":"emacs-lucid","binary_version":"1:30.2+1-2ubuntu1"},{"binary_name":"emacs-nox","binary_version":"1:30.2+1-2ubuntu1"},{"binary_version":"1:30.2+1-2ubuntu1","binary_name":"emacs-pgtk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/xemacs21?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.4.24-12build3"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21","binary_version":"21.4.24-12build3"},{"binary_version":"21.4.24-12build3","binary_name":"xemacs21-bin"},{"binary_version":"21.4.24-12build3","binary_name":"xemacs21-mule"},{"binary_name":"xemacs21-mule-canna-wnn","binary_version":"21.4.24-12build3"},{"binary_name":"xemacs21-nomule","binary_version":"21.4.24-12build3"},{"binary_version":"21.4.24-12build3","binary_name":"xemacs21-support"},{"binary_name":"xemacs21-supportel","binary_version":"21.4.24-12build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}},{"package":{"name":"xemacs21-packages","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/xemacs21-packages?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2009.02.17.dfsg.3-3","2009.02.17.dfsg.3-3build1"],"ecosystem_specific":{"binaries":[{"binary_name":"xemacs21-basesupport","binary_version":"2009.02.17.dfsg.3-3build1"},{"binary_name":"xemacs21-basesupport-el","binary_version":"2009.02.17.dfsg.3-3build1"},{"binary_name":"xemacs21-mulesupport","binary_version":"2009.02.17.dfsg.3-3build1"},{"binary_name":"xemacs21-mulesupport-el","binary_version":"2009.02.17.dfsg.3-3build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96269.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}