CVE-2026-47784

EUVD-2026-31069
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 41%
Affected Products (NVD)
VendorProductVersion
memcachedmemcached
𝑥
< 1.6.42
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
memcached
bookworm
vulnerable
bullseye
vulnerable
bullseye (security)
1.6.9+dfsg-1+deb11u1
fixed
forky
1.6.42-1
fixed
sid
1.6.42-1
fixed
trixie
no-dsa
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
memcached
suse enterprise sap 15 SP4
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP5
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP6
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP7
1.5.6-150000.4.10.1
fixed
suse enterprise server 12 SP5
1.4.39-4.14.1
fixed
suse enterprise server 15 SP4
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP5
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP6
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP7
1.5.6-150000.4.10.1
fixed
memcached-devel
suse enterprise sap 15 SP4
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP5
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP6
1.5.6-150000.4.10.1
fixed
suse enterprise sap 15 SP7
1.5.6-150000.4.10.1
fixed
suse enterprise server 12 SP5
1.4.39-4.14.1
fixed
suse enterprise server 15 SP4
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP5
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP6
1.5.6-150000.4.10.1
fixed
suse enterprise server 15 SP7
1.5.6-150000.4.10.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
memcached
Amazon Linux 2023
0:1.6.42-2.amzn2023.0.1
fixed
memcached-debuginfo
Amazon Linux 2023
0:1.6.42-2.amzn2023.0.1
fixed
memcached-debugsource
Amazon Linux 2023
0:1.6.42-2.amzn2023.0.1
fixed
memcached-devel
Amazon Linux 2023
0:1.6.42-2.amzn2023.0.1
fixed
memcached-selinux
Amazon Linux 2023
0:1.6.42-2.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
memcached
Azure Linux 3.0
0:1.6.27-5.azl3
fixed
Common Weakness Enumeration
References
https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed
https://github.com/memcached/memcached/compare/1.6.41...1.6.42
https://github.com/memcached/memcached/wiki/ReleaseNotes1642