CVE-2026-47784

Public on 2026-05-20
Modified on 2026-05-21
Description
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.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
5.9
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core libmemcached Not Affected
Amazon Linux 2023 libmemcached-awesome Not Affected
Amazon Linux 2 - Core memcached Not Affected
Amazon Linux 2 - Memcached1.5 Extra memcached Not Affected
Amazon Linux 2023 memcached Pending Fix
Amazon Linux 2 - Core python-memcached Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-47784 Mitre: CVE-2026-47784