CVE-2026-6664

A flaw was found in PgBouncer. An integer overflow in the network packet parsing code allows an unauthenticated remote attacker to bypass a boundary check by sending a malformed SCRAM authentication packet. This can lead to a crash, resulting in a Denial of Service DoS for the PgBouncer instance...

UBUNTU-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...

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...

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 supported releases. However, current databases may have MD5-hashed...

CVE-2026-6478

PostgreSQL is vulnerable to a covert timing channel during the comparison of MD5-hashed passwords in the authentication process. This flaw allows an attacker to recover user credentials, providing sufficient information to authenticate. This vulnerability specifically impacts databases containing...

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...

PT-2026-40923

Name of the Vulnerable Software and Affected Versions PostgreSQL versions prior to 18.4 PostgreSQL versions prior to 17.10 PostgreSQL versions prior to 16.14 PostgreSQL versions prior to 15.18 PostgreSQL versions prior to 14.23 Description A covert timing channel exists during the comparison of...

Linux Distros Unpatched Vulnerability : CVE-2026-6478

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticat...

The vulnerability of the mbuf_get_bytes() and mbuf_get_chars() functions in PostgreSQL PgBouncer’s connection pool allows a hacker to cause a service failure.

The vulnerability of the mbufgetbytes and mbufgetchars functions in PostgreSQL’s PgBouncer connection pool lies in integer overflow. Exploiting this vulnerability could allow a malicious actor to cause a service failure by sending a specially crafted authentication packet called SCRAM...

EUVD-2026-29468

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

AZL-86802 CVE-2026-33603 affecting package dovecot 2.3.20-1

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

CVE-2026-33603

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

CVE-2026-33603

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

CVE-2026-33603

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...

SUSE-SU-2026:21608-1 Security update for ongres-scram, ongres-stringprep, plexus-testing, maven, maven-doxia, mojo-parent, sisu

This update for ongres-scram, ongres-stringprep, plexus-testing, maven, maven-doxia, mojo-parent, sisu fixes the following issues: Changes in ongres-scram: - Version 3.2 Fix Timing Attack Vulnerability in SCRAM Authentication bsc1250399, CVE-2025-59432 Updated dependencies and maven plugins Use...

OPENSUSE-SU-2026:20742-1 Security update for ongres-scram, ongres-stringprep, plexus-testing, maven, maven-doxia, mojo-parent, sisu

This update for ongres-scram, ongres-stringprep, plexus-testing, maven, maven-doxia, mojo-parent, sisu fixes the following issues: Changes in ongres-scram: - Version 3.2 Fix Timing Attack Vulnerability in SCRAM Authentication bsc1250399, CVE-2025-59432 Updated dependencies and maven plugins Use...

CVE-2026-6665

A flaw was found in PgBouncer, a lightweight connection pooler for PostgreSQL. A malicious backend server can exploit a vulnerability in the Salted Challenge Response Authentication Mechanism SCRAM code. By sending a specially crafted server-final-message with an excessively long nonce, the flaw...

BIT-PGBOUNCER-2026-6664 PgBouncer integer overflow in PgBouncer network packet parsing

An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet...

PT-2026-40289

The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow...

CVE-2026-33603: Improper Control of Resource Identifiers

Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the client connection. If successful, the attacker can eavesdrop communications between Dovecot and...