CVE-2026-47783
8.1
HIGH
CVSS 3.1
EPSS 0.08%
Description
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.
How to fix CVE-2026-47783
To remediate CVE-2026-47783, upgrade the affected package to a fixed version below.
- Bitnami/memcached—upgrade to 1.6.42 or later
- Debian/memcached—upgrade to 1.6.9+dfsg-1+deb11u1 or later
Is CVE-2026-47783 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.6.42
- from 0, < 1.6.9+dfsg-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |