{"id":"UBUNTU-CVE-2026-5037","details":"A vulnerability was determined in mxml up to 4.0.4. This issue affects the function index_sort of the file mxml-index.c of the component mxmlIndexNew. Executing a manipulation of the argument tempr can lead to stack-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 6e27354466092a1ac65601e01ce6708710bb9fa5. A patch should be applied to remediate this issue.","modified":"2026-05-20T16:26:11.346109606Z","published":"2026-03-29T09:15:00Z","upstream":["CVE-2026-5037"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-5037"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-5037"},{"type":"REPORT","url":"https://github.com/michaelrsweet/mxml/issues/350"},{"type":"REPORT","url":"https://github.com/michaelrsweet/mxml/commit/6e27354466092a1ac65601e01ce6708710bb9fa5"},{"type":"REPORT","url":"https://github.com/michaelrsweet/mxml/issues/350#issuecomment-4051317229"},{"type":"REPORT","url":"https://github.com/user-attachments/files/25934383/1.xml"},{"type":"REPORT","url":"https://vuldb.com/submit/778638"},{"type":"REPORT","url":"https://vuldb.com/vuln/353963"},{"type":"REPORT","url":"https://vuldb.com/vuln/353963/cti"}],"affected":[{"package":{"name":"mxml","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7-1","2.9-0ubuntu1","2.9-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml1","binary_version":"2.9-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml-bin","binary_version":"2.10-1"},{"binary_name":"libmxml1","binary_version":"2.10-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12-2","3.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml1","binary_version":"3.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2-1","3.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml1","binary_version":"3.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.1-1","3.3.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.1-1build1","binary_name":"libmxml1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml1","binary_version":"3.3.1-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}},{"package":{"name":"mxml","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/mxml?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.1-1build1","3.3.1-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmxml1","binary_version":"3.3.1-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5037.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}]}