{"id":"USN-8792-1","summary":"memcached vulnerability","details":"It was discovered that Memcached incorrectly handled ASCII\nauthentication. A remote attacker could possibly use this issue to\ncause Memcached to crash, resulting in a denial of service.","modified":"2026-09-21T21:42:47.702249518Z","published":"2026-09-21T13:02:27Z","related":["UBUNTU-CVE-2026-90698"],"upstream":["CVE-2026-90698","UBUNTU-CVE-2026-90698"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8792-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-90698"}],"affected":[{"package":{"name":"memcached","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/memcached?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.14-1ubuntu0.3"}]}],"versions":["1.6.9+dfsg-1build1","1.6.12+dfsg-2ubuntu1","1.6.12+dfsg-3","1.6.12+dfsg-4","1.6.13-1","1.6.14-1","1.6.14-1ubuntu0.1","1.6.14-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.14-1ubuntu0.3","binary_name":"memcached"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2026-90698","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","type":"CVSS_V4"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8792-1.json"}},{"package":{"name":"memcached","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/memcached?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.24-1ubuntu0.3"}]}],"versions":["1.6.21-1","1.6.22-1","1.6.23-1","1.6.24-1build1","1.6.24-1build3","1.6.24-1ubuntu0.1","1.6.24-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.24-1ubuntu0.3","binary_name":"memcached"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-90698"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8792-1.json"}},{"package":{"name":"memcached","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/memcached?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.40-1ubuntu0.3"}]}],"versions":["1.6.38-1build1","1.6.39-2","1.6.40-1","1.6.40-1ubuntu0.1","1.6.40-1ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"memcached","binary_version":"1.6.40-1ubuntu0.3"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:26.04:LTS","cves":[{"id":"CVE-2026-90698","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8792-1.json"}}],"schema_version":"1.9.0"}