EUVD-2026-31069
GHSA-r4h3-4q3v-2776
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
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.
AnalysisAI
Timing side-channel in memcached versions prior to 1.6.42 allows remote attackers to recover SASL authentication credentials by measuring response times during password comparison. The flaw stems from the use of the non-constant-time memcmp() function within sasl_server_userdb_checkpass, enabling byte-by-byte inference of stored passwords. …
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RemediationAI
24 hours: Inventory all memcached deployments and identify instances with SASL authentication enabled. 7 days: Develop and test an upgrade plan to memcached 1.6.42 or later in a staging environment; if upgrading is not immediately feasible, implement network-level access controls to restrict memcached access. …
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