HIGH 8.1 Microsoft
CVE-2026-47783
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.
Microsoft Security Update 2026-May: 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.
Affected Products
- azl3 memcached 1.6.27-4 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47783
- https://nvd.nist.gov/vuln/detail/CVE-2026-47783
This high severity vulnerability with a CVSS score of 8.1 was published on 2026-05-12 via Microsoft. Affected: azl3 memcached 1.6.27-4 on Azure Linux 3.0.
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