postgresql: PostgreSQL: Operating system account hijack via symlink following in pg_basebackup and pg_rewind

A flaw was found in PostgreSQL. This vulnerability, related to symlink following in pgbasebackup plain format and pgrewind, allows an origin superuser to overwrite local files. By exploiting this, an attacker could potentially hijack the operating system account. This attack has practical...

RHEL 9 : postgresql (RHSA-2026:29212)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:29212 advisory. PostgreSQL is an advanced object-relational database management system DBMS. Security Fixes: postgresql: PostgreSQL: Operating system accou...

postgresql: PostgreSQL: Operating system account hijack via symlink following in pg_basebackup and pg_rewind

A flaw was found in PostgreSQL. This vulnerability, related to symlink following in pgbasebackup plain format and pgrewind, allows an origin superuser to overwrite local files. By exploiting this, an attacker could potentially hijack the operating system account. This attack has practical...

ALSA-2026:27738 Important: libpq security update

The libpq package provides the PostgreSQL client library, which allows client programs to connect to PostgreSQL servers. Security Fixes: postgresql: PostgreSQL: Operating system account hijack via symlink following in pgbasebackup and pgrewind CVE-2026-6475 postgresql: PostgreSQL libpq: Buffer...

postgresql: PostgreSQL: Operating system account hijack via symlink following in pg_basebackup and pg_rewind

A flaw was found in PostgreSQL. This vulnerability, related to symlink following in pgbasebackup plain format and pgrewind, allows an origin superuser to overwrite local files. By exploiting this, an attacker could potentially hijack the operating system account. This attack has practical...

JLSEC-2026-603

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

OESA-2026-2479 postgresql security update

PostgreSQL is an advanced Object-Relational database management system DBMS. The base postgresql package contains the client programs that you'll need to access a PostgreSQL DBMS server, as well as HTML documentation for the whole system. These client programs can be located on the same machine a...

OESA-2026-2413 postgresql security update

PostgreSQL is an advanced Object-Relational database management system DBMS. The base postgresql package contains the client programs that you'll need to access a PostgreSQL DBMS server, as well as HTML documentation for the whole system. These client programs can be located on the same machine a...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : PostgreSQL vulnerabilities (USN-8294-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8294-1 advisory. It was discovered that PostgreSQL did not correctly enforce authorization for CREATE TYPE. An attacker could possibly use...

Security update for postgresql15

This update for postgresql15 fixes the following issues Update to version 15.18. Security issues: CVE-2026-6472: ensure the user has CREATE privilege on the schema specified bsc1265172. CVE-2026-6473: integer overflows in memory-allocation calculations bsc1265173. CVE-2026-6474: Guard against...

SUSE CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

Security update for postgresql16

This update for postgresql16 fixes the following issues Update to version 16.13. Security issues: CVE-2026-6472: ensure the user has CREATE privilege on the schema specified bsc1265172. CVE-2026-6473: integer overflows in memory-allocation calculations bsc1265173. CVE-2026-6474: Guard against...

UNIX Symbolic Link (Symlink) Following

Overview Affected versions of this package are vulnerable to UNIX Symbolic Link Symlink Following via the pgbasebackup or pgrewind process. An attacker can overwrite arbitrary files on the local system by leveraging symlink following, potentially hijacking the operating system account. This is on...

CVE-2026-6475

Symlink following in PostgreSQL pgbasebackup plain format and in pgrewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the orig...

CVE-2026-6475

Summary (CVE-2026-6475) : PostgreSQL suffers a symlink-following issue in the pg_basebackup plain format and in pg_rewind. An origin superuser can overwrite local files (for example, /var/lib/postgres/.bashrc), which could later be trusted when the server starts due to features like shared_preloa...