Name: CVE-2026-47784: Observable Timing Discrepancy
Creator: Rapid7
Published: 2026-05-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-47784, CWE-208, CVSS 8.1, EPSS 0.0055

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.

CVSS Details

CVSS 3.1 Base Score: 8.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon_linux_2023	—	Upgrade memcached-develUpgrade memcached-debugsourceUpgrade memcached-selinuxUpgrade memcached-debuginfo	Jun 9, 2026	May 20, 2026
Debian	—	Upgrade memcached	May 27, 2026	May 27, 2026
Redhat_linux	—	No solution exists	Jul 17, 2026	May 20, 2026
Ubuntu	—	Upgrade memcached	May 27, 2026	May 27, 2026
Vmware Photon_os	—	Use 'tdnf update' to upgrade all packages to the latest version.	Jun 29, 2026	May 20, 2026

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CVSS Details

Covered by Rapid7

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