{"id":"UBUNTU-CVE-2026-94055","details":"Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.","modified":"2026-09-23T23:40:09Z","published":"2026-09-19T23:17:00Z","upstream":["CVE-2026-94055"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-94055"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-94055"},{"type":"REPORT","url":"https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html"}],"affected":[{"package":{"name":"exim4","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/exim4?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.98.2-1ubuntu2","4.99-4ubuntu1","4.99.1-1ubuntu1","4.99.1-1ubuntu1.1","4.99.1-1ubuntu1.2","4.99.1-1ubuntu1.3","4.99.1-1ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_version":"4.99.1-1ubuntu1.4","binary_name":"exim4"},{"binary_name":"exim4-base","binary_version":"4.99.1-1ubuntu1.4"},{"binary_name":"exim4-config","binary_version":"4.99.1-1ubuntu1.4"},{"binary_name":"exim4-daemon-heavy","binary_version":"4.99.1-1ubuntu1.4"},{"binary_name":"exim4-daemon-light","binary_version":"4.99.1-1ubuntu1.4"},{"binary_version":"4.99.1-1ubuntu1.4","binary_name":"eximon4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-94055.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}