CVE-2026-47783 HIGH

CVE-2026-47783

Vendor Memcached

Product memcached

Weakness CWE-208

Published May 20, 2026

Last update June 30, 2026

View on NVD All CVEs

CVSS base score

8.1/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 20, 2026 CVE published

June 30, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-47783 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/208.html

Related vulnerabilities

04Related CVE

CVE-2025-9031 Timing-Based Username Enumeration in DivvyDrive Information Technologies' DivvyDrive Web CVE-2022-39308 GoCD API authentication of user access tokens subject to timing attack during comparison CVE-2025-59058 httpsig-rs's HMAC verification is vulnerable to timing attack CVE-2024-1543 AES T-Table sub-cache-line leakage CVE-2026-28464 OpenClaw < 2026.2.12 - Timing Attack in Hooks Token Authentication