CVE-2026-47784: Memcached

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

In 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.

Affected products

• Memcached Memcached: before 1.6.42 (fixed in 1.6.42)

Published 2026-05-20. Last modified 2026-07-24.