Back to vendor advisories
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.

HighVendor CVSS 8.1 / 10 1 CVE Published May 21, 2026 at 1:01 AM UTC

Summary

Mariner

Products covered

  • azl3 memcached 1.6.27-4 on Azure Linux 3.0

Remediation

CBL-Mariner Releases

Vendor-listed fixes

  • 1.6.27-5

CVEs in this advisory 1

Updates

  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.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.