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Vulnerabilities

Vulnerability · CVE-2026-47784

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.

Published May 20, 2026 · catalog updated Jul 24, 2026 · In memcached before 1.6.42,

Check if you run it

No confirmed exploitation is on record for CVE-2026-47784. EPSS is 0.55%. Act only if a listed version of In memcached before 1.6.42, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In memcached before 1.6.42,).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.55%
Remediation
Advisory link
Affected products
cpe memcached/memcached

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe memcached/memcachedversion unspecified

How to fix CVE-2026-47784

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-47784. EPSS is 0.55%. Act only if a listed version of In memcached before 1.6.42, is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-208. EPSS 0.55%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 20, 2026 · NIST NVD

    Detected

    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.

  2. Jul 24, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-47784

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-47784

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-47784

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.