CVE-2026-47783
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 1.3%
exploitation probability
1.3%top 33% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
memcached · memcachedReferences
https://access.redhat.com/errata/RHSA-2026:27842https://access.redhat.com/errata/RHSA-2026:27862https://access.redhat.com/security/cve/CVE-2026-47783https://bugzilla.redhat.com/show_bug.cgi?id=2480089https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fedhttps://github.com/memcached/memcached/compare/1.6.41...1.6.42https://github.com/memcached/memcached/wiki/ReleaseNotes1642https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-47783.json