{"schema_version":"1.7.2","id":"OESA-2026-2539","modified":"2026-08-06T11:11:29Z","published":"2026-05-29T11:11:29Z","upstream":["CVE-2026-47783","CVE-2026-47784"],"summary":"memcached security update","details":"memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.\r\n\r\nSecurity Fix(es):\n\nIn memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a loop exits as soon as a valid username is found by sasl_server_userdb_checkpass.(CVE-2026-47783)\n\nIn memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by sasl_server_userdb_checkpass.(CVE-2026-47784)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"memcached","purl":"pkg:rpm/openEuler/memcached&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-5.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["memcached-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-debugsource-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-devel-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-selinux-1.6.22-5.oe2403sp1.aarch64.rpm"],"noarch":["memcached-help-1.6.22-5.oe2403sp1.noarch.rpm"],"src":["memcached-1.6.22-5.oe2403sp1.src.rpm"],"x86_64":["memcached-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-debugsource-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-devel-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-selinux-1.6.22-5.oe2403sp1.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS-SP3","name":"memcached","purl":"pkg:rpm/openEuler/memcached&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-5.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["memcached-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-debugsource-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-devel-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-selinux-1.6.22-5.oe2403sp3.aarch64.rpm"],"noarch":["memcached-help-1.6.22-5.oe2403sp3.noarch.rpm"],"src":["memcached-1.6.22-5.oe2403sp3.src.rpm"],"x86_64":["memcached-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-debugsource-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-devel-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-selinux-1.6.22-5.oe2403sp3.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:20.03-LTS-SP4","name":"memcached","purl":"pkg:rpm/openEuler/memcached&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.10-7.oe2003sp4"}]}],"ecosystem_specific":{"aarch64":["memcached-1.5.10-7.oe2003sp4.aarch64.rpm","memcached-debuginfo-1.5.10-7.oe2003sp4.aarch64.rpm","memcached-debugsource-1.5.10-7.oe2003sp4.aarch64.rpm","memcached-devel-1.5.10-7.oe2003sp4.aarch64.rpm","memcached-selinux-1.5.10-7.oe2003sp4.aarch64.rpm"],"noarch":["memcached-help-1.5.10-7.oe2003sp4.noarch.rpm"],"src":["memcached-1.5.10-7.oe2003sp4.src.rpm"],"x86_64":["memcached-1.5.10-7.oe2003sp4.x86_64.rpm","memcached-debuginfo-1.5.10-7.oe2003sp4.x86_64.rpm","memcached-debugsource-1.5.10-7.oe2003sp4.x86_64.rpm","memcached-devel-1.5.10-7.oe2003sp4.x86_64.rpm","memcached-selinux-1.5.10-7.oe2003sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"memcached","purl":"pkg:rpm/openEuler/memcached&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.12-5.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["memcached-1.6.12-5.oe2203sp4.aarch64.rpm","memcached-debuginfo-1.6.12-5.oe2203sp4.aarch64.rpm","memcached-debugsource-1.6.12-5.oe2203sp4.aarch64.rpm","memcached-devel-1.6.12-5.oe2203sp4.aarch64.rpm","memcached-selinux-1.6.12-5.oe2203sp4.aarch64.rpm"],"noarch":["memcached-help-1.6.12-5.oe2203sp4.noarch.rpm"],"src":["memcached-1.6.12-5.oe2203sp4.src.rpm"],"x86_64":["memcached-1.6.12-5.oe2203sp4.x86_64.rpm","memcached-debuginfo-1.6.12-5.oe2203sp4.x86_64.rpm","memcached-debugsource-1.6.12-5.oe2203sp4.x86_64.rpm","memcached-devel-1.6.12-5.oe2203sp4.x86_64.rpm","memcached-selinux-1.6.12-5.oe2203sp4.x86_64.rpm"]}},{"package":{"ecosystem":"openEuler:24.03-LTS","name":"memcached","purl":"pkg:rpm/openEuler/memcached&distro=openEuler-24.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.22-5.oe2403"}]}],"ecosystem_specific":{"aarch64":["memcached-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-debugsource-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-devel-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-selinux-1.6.22-5.oe2403sp1.aarch64.rpm","memcached-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-debugsource-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-devel-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-selinux-1.6.22-5.oe2403sp3.aarch64.rpm","memcached-1.6.22-5.oe2403.aarch64.rpm","memcached-debuginfo-1.6.22-5.oe2403.aarch64.rpm","memcached-debugsource-1.6.22-5.oe2403.aarch64.rpm","memcached-devel-1.6.22-5.oe2403.aarch64.rpm","memcached-selinux-1.6.22-5.oe2403.aarch64.rpm"],"noarch":["memcached-help-1.6.22-5.oe2403sp1.noarch.rpm","memcached-help-1.6.22-5.oe2403sp3.noarch.rpm","memcached-help-1.6.22-5.oe2403.noarch.rpm"],"src":["memcached-1.6.22-5.oe2403sp1.src.rpm","memcached-1.6.22-5.oe2403sp3.src.rpm","memcached-1.6.22-5.oe2403.src.rpm"],"x86_64":["memcached-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-debugsource-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-devel-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-selinux-1.6.22-5.oe2403sp1.x86_64.rpm","memcached-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-debuginfo-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-debugsource-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-devel-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-selinux-1.6.22-5.oe2403sp3.x86_64.rpm","memcached-1.6.22-5.oe2403.x86_64.rpm","memcached-debuginfo-1.6.22-5.oe2403.x86_64.rpm","memcached-debugsource-1.6.22-5.oe2403.x86_64.rpm","memcached-devel-1.6.22-5.oe2403.x86_64.rpm","memcached-selinux-1.6.22-5.oe2403.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2539"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47783"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47784"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"database_specific":{"severity":"High"}}