CVE-2026-47784

The CVE concerns memcached prior to 1.6.42, where SASL password data used for authentication is exposed to a timing side-channel via memcmp in sasl_server_userdb_checkpass. Affected versions are before 1.6.42; upgrading to 1.6.42 or later is the supported remediation per the release notes. The vu...

PT-2026-42110

Name of the Vulnerable Software and Affected Versions memcached versions prior to 1.6.42 Description Password data for SASL password database authentication contains a timing side channel. This occurs because the sasl server userdb checkpass function utilizes memcmp, which can allow an attacker t...

dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command

A flaw was found in ManageSieve. A remote attacker can exploit this vulnerability by sending a crafted SASL Simple Authentication and Security Layer initial response during the AUTHENTICATE command. This can cause the ManageSieve service to crash repeatedly, leading to a Denial of Service DoS for...

CVE-2024-34162

The web interface of the affected devices is designed to hide the LDAP credentials even for administrative users. But configuring LDAP authentication to "SIMPLE", the device communicates with the LDAP server in clear-text. The LDAP password can be retrieved from this clear-text communication. As...

CVE-2019-13045

...

UBUNTU-CVE-2023-44981

Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authentication is enabled in ZooKeeper quorum.auth.enableSasl=true, the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The...

GHSA-XM78-4M3G-7WM7 Improper Authentication in Apache Kafka

In Apache Kafka 0.10.0.0 to 0.10.2.1 and 0.11.0.0 to 0.11.0.1, authenticated Kafka clients may use impersonation via a manually crafted protocol message with SASL/PLAIN or SASL/SCRAM authentication when using the built-in PLAIN or SCRAM server implementations in Apache Kafka...

memcached: SASL authentication remote code execution

An integer overflow flaw, leading to a heap-based buffer overflow, was found in memcached's parsing of SASL authentication messages. An attacker could create a specially crafted message that would cause the memcached server to crash or, potentially, execute arbitrary code...

hadoop: man-in-the-middle vulnerability

The RPC protocol implementation in Apache Hadoop 2.x before 2.0.6-alpha, 0.23.x before 0.23.9, and 1.x before 1.2.1, when the Kerberos security features are enabled, allows man-in-the-middle attackers to disable bidirectional authentication and obtain sensitive information by forcing a downgrade ...

hadoop: man-in-the-middle vulnerability

The RPC protocol implementation in Apache Hadoop 2.x before 2.0.6-alpha, 0.23.x before 0.23.9, and 1.x before 1.2.1, when the Kerberos security features are enabled, allows man-in-the-middle attackers to disable bidirectional authentication and obtain sensitive information by forcing a downgrade ...

(smtpd): Crash due to improper management of SASL handlers for SMTP sessions

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service...