CVE-2026-47783

high Red Hat
CVSS v3 Base Score
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.1%
Exploitation probability in 30 days
Top 75% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 20, 2026 (50 days ago)
Last Modified: May 20, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in memcached. A remote attacker can exploit a timing side channel during Simple Authentication and Security Layer (SASL) password database authentication. This vulnerability allows an attacker to observe subtle timing differences, which could be used to enumerate valid usernames.

CWE

CWE-208

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com