dovecot: denial of service via crafted message before authentication

A flaw was found in dovecot. An unauthenticated and remote attacker can send a crafted message that causes managesieve to allocate an excessive amount of memory, forcing managesieve-login to be unavailable by repeatedly crashing the process, resulting in a denial of service...

CVE-2026-6478

CVE-2026-6478 enables a covert timing channel during MD5 password comparison in PostgreSQL authentication, allowing credential recovery sufficient to authenticate. The issue does not affect scram-sha-256 passwords. It can affect databases with MD5-hashed passwords originating from upgrades from P...

CVE-2026-6478

Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed...

BIT-PARSE-2026-43930 Parse Server: MFA SMS one-time password accepted twice under concurrent login

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive valid...

RHEL 9 : dovecot (RHSA-2026:17626)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17626 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3...

RHEL 10 : dovecot (RHSA-2026:17602)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17602 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: git-lfs (UTSA-2026-019019)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-019019 advisory. Calling Decoder.Decode on a message which contains deeply nested structures can cause a panic due to stack exhaustion. This is a follow-up to CVE-2022-30635. Tenable...

RHEL 9 : dovecot (RHSA-2026:17630)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17630 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3...

RHEL 9 : dovecot (RHSA-2026:17628)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17628 advisory. Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3...

Vulnerability in core server (CVE-2026-6478)

PostgreSQL discloses MD5-hashed passwords via covert timing channel Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all...

CVE-2026-40410

Use after free in Windows SMB Client allows an authorized attacker to elevate privileges locally...

CVE-2026-33838

Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally...

CVE-2026-34329

Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network...

DEBIAN-CVE-2026-44248

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

EUVD-2026-29924

libcurl might in some circumstances reuse the wrong connection for SMBS transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the...

CVE-2026-44248

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

CVE-2026-44248 Netty: Resource exhaustion in MqttDecoder

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

CVE-2026-43481

In the Linux kernel, the following vulnerability has been resolved: net-shapers: don't free reply skb after genlmsgreply genlmsgreply hands the reply skb to netlink, and netlinkunicast consumes it on all return paths, whether the skb is queued successfully or freed on an error path...

CVE-2026-43481

The CVE-2026-43481 issue affects the Linux kernel net-shapers component. The vulnerability arises because, on genlmsg_reply() failure, the reply skb could be freed twice (the code path freed or nlmsg_free(msg) after genlmsg_reply() and in all return paths). The root cause is that netlink_unicast(...

CVE-2026-43481

In the Linux kernel, the following vulnerability has been resolved: net-shapers: don't free reply skb after genlmsgreply genlmsgreply hands the reply skb to netlink, and netlinkunicast consumes it on all return paths, whether the skb is queued successfully or freed on an error path...