Timing Attack Affecting memcached/memcached package, versions [,1.6.42)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.26% (67th percentile)

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  • Snyk IDSNYK-UNMANAGED-MEMCACHEDMEMCACHED-16770144
  • published20 May 2026
  • disclosed20 May 2026
  • creditUnknown

Introduced: 20 May 2026

CVE-2026-47783  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

Upgrade memcached/memcached to version 1.6.42 or higher.

Overview

Affected versions of this package are vulnerable to Timing Attack via the sasl_server_userdb_checkpass function. An attacker can infer valid usernames by measuring response times during authentication attempts.

CVSS Base Scores

version 4.0
version 3.1