CVE-2026-47783HIGH 8.1EPSS p66.8%

CVE-2026-47783CVE-2026-47783

memcached / memcached

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.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS1.26% probability of exploitation · percentile 66.8% · 2026-08-03T12:00:16Z
Published2026-05-20
Last modified2026-07-24

Underlying weaknesses· 1

CWE-208

References

  1. https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed
  2. https://github.com/memcached/memcached/compare/1.6.41...1.6.42
  3. https://github.com/memcached/memcached/wiki/ReleaseNotes1642

1

TypeTargetConfidenceTier
WeaknessObservable Timing Discrepancycwe-2080%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.