Issued at: 2026-07-27
Updated at: 2026-07-28
Synopsis
Important: libpq security update
Description
The libpq package provides the PostgreSQL client library, which allows client programs to connect to PostgreSQL servers.
Security Fix(es):
* postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory (CVE-2026-6477)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected products
Rocky Linux 9 aarch64
Rocky Linux 9 ppc64le
Rocky Linux 9 s390x
Rocky Linux 9 x86_64
Fixes
2477442
CVEs
CVE-2026-6477
Affected packages
Rocky Linux 9 aarch64 - AppStream
libpq-0:13.23-3.el9_8.aarch64.rpm
libpq-0:13.23-3.el9_8.src.rpm
libpq-debuginfo-0:13.23-3.el9_8.aarch64.rpm
libpq-debugsource-0:13.23-3.el9_8.aarch64.rpm
libpq-devel-0:13.23-3.el9_8.aarch64.rpm
libpq-devel-debuginfo-0:13.23-3.el9_8.aarch64.rpm
Rocky Linux 9 x86_64 - AppStream
libpq-0:13.23-3.el9_8.i686.rpm
libpq-0:13.23-3.el9_8.src.rpm
libpq-0:13.23-3.el9_8.x86_64.rpm
libpq-debuginfo-0:13.23-3.el9_8.i686.rpm
libpq-debuginfo-0:13.23-3.el9_8.x86_64.rpm
libpq-debugsource-0:13.23-3.el9_8.i686.rpm
libpq-debugsource-0:13.23-3.el9_8.x86_64.rpm
libpq-devel-0:13.23-3.el9_8.i686.rpm
libpq-devel-0:13.23-3.el9_8.x86_64.rpm
libpq-devel-debuginfo-0:13.23-3.el9_8.i686.rpm
libpq-devel-debuginfo-0:13.23-3.el9_8.x86_64.rpm
Rocky Linux 9 ppc64le - AppStream
libpq-0:13.23-3.el9_8.ppc64le.rpm
libpq-0:13.23-3.el9_8.src.rpm
libpq-debuginfo-0:13.23-3.el9_8.ppc64le.rpm
libpq-debugsource-0:13.23-3.el9_8.ppc64le.rpm
libpq-devel-0:13.23-3.el9_8.ppc64le.rpm
libpq-devel-debuginfo-0:13.23-3.el9_8.ppc64le.rpm
Rocky Linux 9 s390x - AppStream
libpq-0:13.23-3.el9_8.s390x.rpm
libpq-0:13.23-3.el9_8.src.rpm
libpq-debuginfo-0:13.23-3.el9_8.s390x.rpm
libpq-debugsource-0:13.23-3.el9_8.s390x.rpm
libpq-devel-0:13.23-3.el9_8.s390x.rpm
libpq-devel-debuginfo-0:13.23-3.el9_8.s390x.rpm