Critical Memcached SASL Vulnerability Let Attackers Infer Valid Usernames

A newly disclosed security issue in Memcached has raised concerns after developers confirmed a timing side-channel vulnerability in its SASL authentication mechanism that could allow attackers to infer valid usernames, now tracked as CVE‑2026‑47783. The flaw was addressed in the recently released Memcached version 1.6.42, a security-focused update that fixes multiple critical bugs affecting stability […] The post Critical Memcached SASL Vulnerability Let Attackers Infer Valid Usernames appeared first on Cyber Security News.