{"action":"Upgrade memcached to 1.6.18-1+deb12u1 or later.","affected":[{"fixed":"1.6.18-1+deb12u1","introduced":"0"}],"component":"memcached","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.6.18-1+deb12u1"],"id":"tcs_01M5NSK48Z4TFEVN9W1XJ7S1ZA","modified_at":"2026-10-01T03:03:16.270857562Z","published_at":"2026-05-20T07:16:15.533Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-47783","https://security-tracker.debian.org/tracker/CVE-2026-47783"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-47783","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-47783"}],"summary":"In 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."}