What’s Vulnerable › Vulnerabilities

CVE-2026-47784

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-20 · updated 2026-07-24
• Weakness: CWE-208

Description

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.

Affected products

• Memcached: before 1.6.42 — fixed in 1.6.42

How to fix

Upgrade to a fixed version: Memcached 1.6.42. Check the vendor advisory for mitigations.

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

Get alerted when CVE-2026-47784 or the next vulnerability affects your stack