Format string error in PostgreSQL - CVE-2026-6474

Vulnerability identifier: #VU131456

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-6474

CWE-ID: CWE-134

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to an externally-controlled format string in the timeofday() function when processing crafted timezone zones. A remote user can supply a crafted timezone zone to disclose sensitive information.

The issue can expose portions of server memory.

PostgreSQL
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP6
Debian Linux
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Basesystem Module
Server Applications Module
SUSE Package Hub 15
Legacy Module
openSUSE Leap
Ubuntu
openEuler
SecurityCenter
postgresql-14 (Ubuntu package)
postgresql14-server-devel-debuginfo
postgresql14
postgresql14-server-devel
postgresql14-docs
postgresql14-plperl
postgresql14-debugsource
postgresql14-server
postgresql14-plpython-debuginfo
postgresql14-plperl-debuginfo
postgresql14-contrib
postgresql14-pltcl-debuginfo
postgresql14-devel-debuginfo
postgresql14-pltcl
postgresql14-server-debuginfo
postgresql14-plpython
postgresql14-debuginfo
postgresql14-contrib-debuginfo
postgresql14-devel
postgresql14-llvmjit
postgresql14-llvmjit-debuginfo
postgresql14-llvmjit-devel
postgresql14-test
postgresql-15 (Debian package)
postgresql-debuginfo
postgresql-private-devel
postgresql-pltcl
postgresql-plpython3
postgresql-plperl
postgresql-llvmjit
postgresql-docs
postgresql-debugsource
postgresql-private-libs
postgresql-contrib
postgresql
libpq-devel
libpq-debugsource
libpq-debuginfo
libpq
postgresql-test-rpm-macros
postgresql-server
postgresql-server-devel
postgresql-static
postgresql-test
postgresql15-devel
postgresql15-server-devel
postgresql15-contrib-debuginfo
postgresql15-debugsource
postgresql15-pltcl
postgresql15-server-debuginfo
postgresql15-plpython
postgresql15
postgresql15-server
postgresql15-plpython-debuginfo
postgresql15-plperl
postgresql15-plperl-debuginfo
postgresql15-pltcl-debuginfo
postgresql15-debuginfo
postgresql15-devel-debuginfo
postgresql15-contrib
postgresql15-docs
postgresql15-server-devel-debuginfo
postgresql15-test
postgresql15-llvmjit-debuginfo
postgresql15-llvmjit-devel
postgresql15-llvmjit
postgresql16-debugsource
postgresql16-plpython
postgresql16-pltcl-debuginfo
postgresql16-debuginfo
postgresql16-server-debuginfo
postgresql16-plperl-debuginfo
postgresql16-server-devel
postgresql16-server
postgresql16-devel
postgresql16-contrib-debuginfo
postgresql16-pltcl
postgresql16
postgresql16-plpython-debuginfo
postgresql16-devel-debuginfo
postgresql16-server-devel-debuginfo
postgresql16-contrib
postgresql16-docs
postgresql16-plperl
postgresql16-llvmjit
postgresql16-llvmjit-debuginfo
postgresql16-test
postgresql16-llvmjit-devel
postgresql-17 (Debian package)
postgresql-17-upgrade-devel
postgresql-17-test-rpm-macros
postgresql-17
postgresql-17-contrib
postgresql-17-debuginfo
postgresql-17-debugsource
postgresql-17-docs
postgresql-17-plperl
postgresql-17-plpython3
postgresql-17-private-devel
postgresql-17-private-libs
postgresql-17-server
postgresql-17-server-devel
postgresql-17-static
postgresql-17-test
postgresql-17-upgrade
postgresql-17-pltcl
postgresql17-pltcl-debuginfo
postgresql17-pltcl
postgresql17-debuginfo
postgresql17-contrib-debuginfo
postgresql17
postgresql17-llvmjit
postgresql17-server-debuginfo
postgresql17-contrib
postgresql17-server-devel
postgresql17-devel-debuginfo
postgresql17-plperl
postgresql17-debugsource
postgresql17-plpython
postgresql17-devel
postgresql17-llvmjit-devel
postgresql17-plpython-debuginfo
postgresql17-server-devel-debuginfo
postgresql17-plperl-debuginfo
postgresql17-server
postgresql17-docs
postgresql17-llvmjit-debuginfo
postgresql17-test
libpq5-32bit
libecpg6-debuginfo
libpq5
libpq5-debuginfo
libecpg6
libpq5-debuginfo-32bit
libecpg6-32bit
libecpg6-debuginfo-32bit
postgresql18-debuginfo
libpq5-32bit-debuginfo
postgresql18-debugsource
postgresql18-test
libecpg6-32bit-debuginfo
postgresql18-devel-mini
postgresql18-server-debuginfo
postgresql18-plperl-debuginfo
postgresql18-plpython-debuginfo
postgresql18-llvmjit-debuginfo
postgresql18-server-devel-debuginfo
postgresql18-server
postgresql18-pltcl-debuginfo
postgresql18-pltcl
postgresql18-llvmjit
libpq5-64bit
libecpg6-64bit-debuginfo
libpq5-64bit-debuginfo
libecpg6-64bit
postgresql18-docs
postgresql18
postgresql18-devel-mini-debuginfo
postgresql18-plpython
postgresql18-contrib
postgresql18-server-devel
postgresql18-contrib-debuginfo
postgresql18-devel-debuginfo
postgresql18-plperl
postgresql18-mini-debugsource
postgresql18-llvmjit-devel
postgresql18-devel

Install security update from vendor's website.

PostgreSQL - addressed in versions 14.23, 15.18, 16.14, 17.10, 18.4
SecurityCenter - addressed in versions SC202607.1, SC202607.2
postgresql-14 (Ubuntu package) - addressed in versions 14.23-0ubuntu0.22.04.1, 16.14-0ubuntu0.24.04.1, 17.10-0ubuntu0.25.10.1, 18.4-0ubuntu0.26.04.1
postgresql14-server-devel-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14 - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-server-devel - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-docs - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-plperl - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-debugsource - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-server - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-plpython-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-plperl-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-contrib - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-pltcl-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-devel-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-pltcl - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-server-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-plpython - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-contrib-debuginfo - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-devel - addressed in versions 14.23-3.72.1, 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-llvmjit - addressed in versions 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-llvmjit-debuginfo - addressed in versions 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-llvmjit-devel - addressed in versions 14.23-150200.5.72.1, 14.23-150600.16.31.1
postgresql14-test - update to 14.23-150600.16.31.1
postgresql-15 (Debian package) - update to 15.18-0+deb12u1
postgresql-debuginfo - update to 15.18-1
postgresql-private-devel - update to 15.18-1
postgresql-pltcl - update to 15.18-1
postgresql-plpython3 - update to 15.18-1
postgresql-plperl - update to 15.18-1
postgresql-llvmjit - update to 15.18-1
postgresql-docs - update to 15.18-1
postgresql-debugsource - update to 15.18-1
postgresql-private-libs - update to 15.18-1
postgresql-contrib - update to 15.18-1
postgresql - update to 15.18-1
libpq-devel - update to 15.18-1
libpq-debugsource - update to 15.18-1
libpq-debuginfo - update to 15.18-1
libpq - update to 15.18-1
postgresql-test-rpm-macros - update to 15.18-1
postgresql-server - update to 15.18-1
postgresql-server-devel - update to 15.18-1
postgresql-static - update to 15.18-1
postgresql-test - update to 15.18-1
postgresql15-devel - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-server-devel - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-contrib-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-debugsource - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-pltcl - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-server-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-plpython - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15 - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-server - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-plpython-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-plperl - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-plperl-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-pltcl-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-devel-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-contrib - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-docs - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-server-devel-debuginfo - addressed in versions 15.18-3.56.1, 15.18-150200.5.57.1, 15.18-150600.16.31.1
postgresql15-test - update to 15.18-150600.16.31.1
postgresql15-llvmjit-debuginfo - update to 15.18-150600.16.31.1
postgresql15-llvmjit-devel - update to 15.18-150600.16.31.1
postgresql15-llvmjit - update to 15.18-150600.16.31.1
postgresql16-debugsource - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-plpython - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-pltcl-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-server-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-plperl-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-server-devel - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-server - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-devel - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-contrib-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-pltcl - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16 - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-plpython-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-devel-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-server-devel-debuginfo - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-contrib - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-docs - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-plperl - addressed in versions 16.14-3.44.1, 16.14-150200.5.44.1, 16.14-150600.16.33.1
postgresql16-llvmjit - update to 16.14-150600.16.33.1
postgresql16-llvmjit-debuginfo - update to 16.14-150600.16.33.1
postgresql16-test - update to 16.14-150600.16.33.1
postgresql16-llvmjit-devel - update to 16.14-150600.16.33.1
postgresql-17 (Debian package) - update to 17.10-0+deb13u1
postgresql-17-upgrade-devel - update to 17.10-1
postgresql-17-test-rpm-macros - update to 17.10-1
postgresql-17 - update to 17.10-1
postgresql-17-contrib - update to 17.10-1
postgresql-17-debuginfo - update to 17.10-1
postgresql-17-debugsource - update to 17.10-1
postgresql-17-docs - update to 17.10-1
postgresql-17-plperl - update to 17.10-1
postgresql-17-plpython3 - update to 17.10-1
postgresql-17-private-devel - update to 17.10-1
postgresql-17-private-libs - update to 17.10-1
postgresql-17-server - update to 17.10-1
postgresql-17-server-devel - update to 17.10-1
postgresql-17-static - update to 17.10-1
postgresql-17-test - update to 17.10-1
postgresql-17-upgrade - update to 17.10-1
postgresql-17-pltcl - update to 17.10-1
postgresql17-pltcl-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-pltcl - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-contrib-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17 - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-llvmjit - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-server-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-contrib - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-server-devel - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-devel-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-plperl - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-debugsource - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-plpython - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-devel - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-llvmjit-devel - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-plpython-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-server-devel-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-plperl-debuginfo - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-server - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-docs - addressed in versions 17.10-150200.5.28.1, 17.10-150600.13.27.1
postgresql17-llvmjit-debuginfo - update to 17.10-150600.13.27.1
postgresql17-test - update to 17.10-150600.13.27.1
libpq5-32bit - addressed in versions 18.4-8.12.1, 18.4-150200.5.12.1, 18.4-150600.13.11.1
libecpg6-debuginfo - addressed in versions 18.4-8.12.1, 18.4-150200.5.12.1, 18.4-150600.13.11.1
libpq5 - addressed in versions 18.4-8.12.1, 18.4-150200.5.12.1, 18.4-150600.13.11.1
libpq5-debuginfo - addressed in versions 18.4-8.12.1, 18.4-150200.5.12.1, 18.4-150600.13.11.1
libecpg6 - addressed in versions 18.4-8.12.1, 18.4-150200.5.12.1, 18.4-150600.13.11.1
libpq5-debuginfo-32bit - update to 18.4-8.12.1
libecpg6-32bit - addressed in versions 18.4-8.12.1, 18.4-150600.13.11.1
libecpg6-debuginfo-32bit - update to 18.4-8.12.1
postgresql18-debuginfo - addressed in versions 18.4-150200.5.12.1, 18.4-150600.13.11.1
libpq5-32bit-debuginfo - addressed in versions 18.4-150200.5.12.1, 18.4-150600.13.11.1
postgresql18-debugsource - addressed in versions 18.4-150200.5.12.1, 18.4-150600.13.11.1
postgresql18-test - update to 18.4-150600.13.11.1
libecpg6-32bit-debuginfo - update to 18.4-150600.13.11.1
postgresql18-devel-mini - update to 18.4-150600.13.11.1
postgresql18-server-debuginfo - update to 18.4-150600.13.11.1
postgresql18-plperl-debuginfo - update to 18.4-150600.13.11.1
postgresql18-plpython-debuginfo - update to 18.4-150600.13.11.1
postgresql18-llvmjit-debuginfo - update to 18.4-150600.13.11.1
postgresql18-server-devel-debuginfo - update to 18.4-150600.13.11.1
postgresql18-server - update to 18.4-150600.13.11.1
postgresql18-pltcl-debuginfo - update to 18.4-150600.13.11.1
postgresql18-pltcl - update to 18.4-150600.13.11.1
postgresql18-llvmjit - update to 18.4-150600.13.11.1
libpq5-64bit - update to 18.4-150600.13.11.1
libecpg6-64bit-debuginfo - update to 18.4-150600.13.11.1
libpq5-64bit-debuginfo - update to 18.4-150600.13.11.1
libecpg6-64bit - update to 18.4-150600.13.11.1
postgresql18-docs - update to 18.4-150600.13.11.1
postgresql18 - update to 18.4-150600.13.11.1
postgresql18-devel-mini-debuginfo - update to 18.4-150600.13.11.1
postgresql18-plpython - update to 18.4-150600.13.11.1
postgresql18-contrib - update to 18.4-150600.13.11.1
postgresql18-server-devel - update to 18.4-150600.13.11.1
postgresql18-contrib-debuginfo - update to 18.4-150600.13.11.1
postgresql18-devel-debuginfo - update to 18.4-150600.13.11.1
postgresql18-plperl - update to 18.4-150600.13.11.1
postgresql18-mini-debugsource - update to 18.4-150600.13.11.1
postgresql18-llvmjit-devel - update to 18.4-150600.13.11.1
postgresql18-devel - update to 18.4-150600.13.11.1

• https://www.postgresql.org/about/news/postgresql-184-1710-1614-1518-and-1423-released-3297/
• https://www.postgresql.org/support/security/CVE-2026-6474/

• Multiple vulnerabilities in PostgreSQL
• Debian update for postgresql-17
• Debian update for postgresql-15
• SUSE update for postgresql17
• SUSE update for postgresql18
• SUSE update for postgresql18
• SUSE update for postgresql18
• SUSE update for postgresql16
• SUSE update for postgresql15
• SUSE update for postgresql15
• SUSE update for postgresql16
• SUSE update for postgresql14
• Ubuntu update for postgresql-14
• openEuler 24.03 LTS SP3 update for postgresql-17
• openEuler 24.03 LTS SP3 update for postgresql
• openEuler 24.03 LTS update for postgresql
• openEuler 24.03 LTS update for libpq
• openEuler 24.03 LTS SP3 update for libpq
• SUSE update for postgresql16
• SUSE update for postgresql15
• SUSE update for postgresql14
• openEuler 24.03 LTS SP1 update for libpq
• openEuler 24.03 LTS SP1 update for postgresql
• SUSE update for postgresql14
• SUSE update for postgresql17
• Multiple vulnerabilities in Tenable Security Center
• Tenable Security Center on Enclave Security update for third-party components