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Microsoft Security Response CenterCVE-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.

Mariner

Read the vendor bulletin Get alerts for azl3 memcached 1.6.27-4 on Azure Linux
8.1CVSS out of 10High severity
Scope

What the vendor says is affected

  • azl3 memcached 1.6.27-4 on Azure Linux 3.0

Versions the vendor lists as fixed

  • 1.6.27-5
Next step

What the vendor recommends

CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-47783View CVSS, KEV, EPSS, and threat context
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