JLSEC-2026-606

Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AFUNIX socket to achieve sustained denial of service. If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket. Versions before PostgreSQL 18....

JLSEC-2026-602

Externally-controlled format string in PostgreSQL timeofday function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected...

JLSEC-2026-604

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

JLSEC-2026-608

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18...

JLSEC-2026-605

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...

JLSEC-2026-600

Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions before PostgreSQL...

JLSEC-2026-601

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user...

RHSA-2026:24348 Red Hat Security Advisory: postgresql-jdbc security update

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jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A malicious server can exploit this vulnerability by instructing the driver to perform SCRAM-SHA-256 Salted Challenge Response Authentication Mechanism Secure Hash Algorithm 256 authentication with an excessively large iteration...

Important: Red Hat Security Advisory: postgresql-jdbc security update

An update for postgresql-jdbc is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabili...

Important: postgresql

Issue Overview: Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores...

Amazon Linux 2 : libpq, --advisory ALAS2POSTGRESQL14-2026-023 (ALASPOSTGRESQL14-2026-023)

The version of libpq installed on the remote host is prior to 14.23-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2POSTGRESQL14-2026-023 advisory. Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64,...

Important: postgresql16

Issue Overview: Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions...

ALSA-2026:24348 Important: postgresql-jdbc security update

PostgreSQL is an advanced object-relational database management system. The postgresql-jdbc package includes the .jar files needed for Java programs to access a PostgreSQL database. Security Fixes: jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authenticati...

Amazon Linux 2 : postgresql, --advisory ALAS2-2026-3344 (ALAS-2026-3344)

The version of postgresql installed on the remote host is prior to 9.2.24-8. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3344 advisory. Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and...

Amazon Linux 2023 : postgresql15, postgresql15-contrib, postgresql15-llvmjit (ALAS2023-2026-1768)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1768 advisory. Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to...

Important: postgresql17

Issue Overview: Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions...

Important: postgresql

Issue Overview: Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions...

TencentOS Server 4: postgresql (TSSA-2026:0343)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0343 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

RHEL 10 : postgresql-jdbc (RHSA-2026:24348)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:24348 advisory. PostgreSQL is an advanced object-relational database management system. The postgresql-jdbc package includes the .jar files needed for Java program...