{"id":"USN-8460-1","summary":"libxml2 vulnerabilities","details":"It was discovered that libxml2 did not properly release memory allocated in\nthe xmllint utility. An attacker could possibly use this issue to cause a\ndenial of service. (CVE-2026-1757)\n\nA type confusion vulnerability was found in libxml2 when processing a\nspecially crafted XML document. A remote attacker could possibly use this\nissue to cause a denial of service. (CVE-2026-6732)","modified":"2026-06-23T04:49:21.672829756Z","published":"2026-06-22T17:10:23Z","related":["UBUNTU-CVE-2026-1757","UBUNTU-CVE-2026-6732"],"upstream":["CVE-2026-1757","CVE-2026-6732","UBUNTU-CVE-2026-1757","UBUNTU-CVE-2026-6732"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8460-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-1757"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6732"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libxml2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.5+dfsg-0.2ubuntu0.2"}]}],"versions":["2.12.7+dfsg+really2.9.14-0.4","2.12.7+dfsg+really2.9.14-0.4ubuntu0.1","2.12.7+dfsg+really2.9.14-1","2.14.3+dfsg-0exp1","2.14.3+dfsg-0exp2","2.14.3+dfsg-0exp3","2.14.4+dfsg-0exp1","2.14.5+dfsg-0exp1","2.14.5+dfsg-0exp2","2.14.5+dfsg-0.1","2.14.5+dfsg-0.2","2.14.5+dfsg-0.2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.14.5+dfsg-0.2ubuntu0.2","binary_name":"libxml2-16"},{"binary_version":"2.14.5+dfsg-0.2ubuntu0.2","binary_name":"libxml2-utils"},{"binary_version":"2.14.5+dfsg-0.2ubuntu0.2","binary_name":"python3-libxml2"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2026-1757"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-6732"}],"ecosystem":"Ubuntu:25.10"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8460-1.json"}},{"package":{"name":"libxml2","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libxml2?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.15.2+dfsg-0.1ubuntu0.1"}]}],"versions":["2.14.5+dfsg-0.2","2.14.5+dfsg-0.2build1","2.15.1+dfsg-0.3","2.15.1+dfsg-0.4","2.15.1+dfsg-1","2.15.1+dfsg-2","2.15.1+dfsg-2ubuntu1","2.15.1+dfsg-2ubuntu2","2.15.2+dfsg-0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.15.2+dfsg-0.1ubuntu0.1","binary_name":"libxml2-16"},{"binary_version":"2.15.2+dfsg-0.1ubuntu0.1","binary_name":"libxml2-source"},{"binary_version":"2.15.2+dfsg-0.1ubuntu0.1","binary_name":"libxml2-utils"},{"binary_version":"2.15.2+dfsg-0.1ubuntu0.1","binary_name":"python3-libxml2"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-6732"}],"ecosystem":"Ubuntu:26.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8460-1.json"}}],"schema_version":"1.7.5"}