RHSA-2026:69876 — Red Hat Security Advisory: postgresql:16 security update

Fixed packages 37

Release	Package	Fixed in
Red Hat · RHEL 8 enterprise_linux:8::appstream	pg_repack	0:1.5.1-1.module+el8.10.0+22551+c0330dc9
Red Hat · RHEL 8 enterprise_linux:8::appstream	pg_repack-debuginfo	0:1.5.1-1.module+el8.10.0+22551+c0330dc9
Red Hat · RHEL 8 enterprise_linux:8::appstream	pg_repack-debugsource	0:1.5.1-1.module+el8.10.0+22551+c0330dc9
Red Hat · RHEL 8 enterprise_linux:8::appstream	pgaudit	0:16.0-1.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	pgaudit-debuginfo	0:16.0-1.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	pgaudit-debugsource	0:16.0-1.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgres-decoderbufs	0:2.4.0-1.Final.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgres-decoderbufs-debuginfo	0:2.4.0-1.Final.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgres-decoderbufs-debugsource	0:2.4.0-1.Final.module+el8.10.0+20413+d8116364
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-contrib	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-contrib-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-debugsource	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-docs	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-docs-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-plperl	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-plperl-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-plpython3	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-plpython3-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-pltcl	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-pltcl-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-private-devel	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-private-libs	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-private-libs-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-server	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-server-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-server-devel	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-server-devel-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-static	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-test	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-test-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-test-rpm-macros	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-upgrade	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-upgrade-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-upgrade-devel	0:16.15-1.module+el8.10.0+24863+d1dc0d60
Red Hat · RHEL 8 enterprise_linux:8::appstream	postgresql-upgrade-devel-debuginfo	0:16.15-1.module+el8.10.0+24863+d1dc0d60

Vulnerabilities 16

High 8.8

CVE-2026-14662 Public exploit

PostgreSQL tsvector and tsquery undersize allocations, via integer wraparound

Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary code as the operating s…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14664

PostgreSQL regexp heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved un…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14669 Public exploit

PostgreSQL to_char heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.6, 17.11, 16.15, …

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14670

PostgreSQL plperl tied object heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL plperl return of a tied hash allows the function owner to execute arbitrary code as the operating system user running the database, via a crafted function body. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14671

PostgreSQL refint plan cache type confusion executes arbitrary code

Type confusion in PostgreSQL module "refint" allows an object creator to execute arbitrary code as the operating system user running the database. The fix for this emerged as a non-security bug report, and the fix appear in the git repository with subject "re…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14677

PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound

Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user runnin…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-14680

PostgreSQL type confusion via "internal" arguments

Type confusion with PostgreSQL "internal" data type arguments allows any user to execute arbitrary code as the operating system user running the database, via calls to functions with that argument type. Type "internal" represents a class of mutually-incompati…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-15741

PostgreSQL expression deparse allows SQL injection via EXTRACT argument

SQL injection in PostgreSQL EXTRACT() deparse allows an object owner to execute arbitrary SQL as a superuser via a hostile object definition. Attacks affect expression deparse consumers broadly, including pg_dump, psql commands like \sf, and any similar usage…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-15742

PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

Integer wraparound in PostgreSQL fuzzystrmatch allows a user to direct writes to a huge range of addresses, executing arbitrary code as the operating system user running the database, via extreme inputs to SQL function levenshtein() or levenshtein_less_equal(…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-16239

PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code

Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.6, 17.11, 16.15, …

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-18408

PostgreSQL psql \unrestrict lets superuser of pg_dump origin server execute arbitrary code in psql client

Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject arbitrary code for restore-time execution as the client operating system account running psql to restore the dump, via psql \restrict meta-command in…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.8

CVE-2026-19385

PostgreSQL pg_dump heap buffer overflow executes arbitrary code

Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execute arbitrary code as the operating system user running pg_dump, via a crafted transform list. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, an…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.2

CVE-2026-14679

PostgreSQL stack buffer overflow in argument match writes 0x0 and 0x1 to server memory

Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count. The attack can write only 0x0 and 0x1 bytes. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.1

CVE-2026-14668

PostgreSQL ctid type confusion in selectivity estimator discloses derivative of arbitrary read

Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, …

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 8.1

CVE-2026-6464

PostgreSQL psql COPY FROM STDIN early failure processes data lines as psql commands

Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection. If the "COPY FROM STDIN" or "\copy FROM STDIN" command fails before the server indicates that it awaits …

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026
High 7.2

CVE-2026-6471 Public exploit

PostgreSQL logical decoding can dlopen arbitrary file

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary cod…

postgresql-9.3 postgresql15 postgresql-9.5 postgresql-10 Debian Ubuntu Azure Linux Alpine Wolfi

Aug 13, 2026

References

article
https://access.redhat.com/security/updates/classification/#important
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515302
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515303
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515306
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515307
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515308
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515311
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515313
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515314
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515316
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515317
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515321
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515322
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515325
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515326
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515328
report
https://bugzilla.redhat.com/show_bug.cgi?id=2515332
advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_69876.json
report
https://access.redhat.com/security/cve/CVE-2026-6464
advisory
https://www.cve.org/CVERecord?id=CVE-2026-6464
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-6464
article
https://www.postgresql.org/support/security/CVE-2026-6464/
report
https://access.redhat.com/security/cve/CVE-2026-6471
advisory
https://www.cve.org/CVERecord?id=CVE-2026-6471
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-6471
article
https://www.postgresql.org/support/security/CVE-2026-6471/
report
https://access.redhat.com/security/cve/CVE-2026-14662
advisory
https://www.cve.org/CVERecord?id=CVE-2026-14662
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-14662
article
https://www.postgresql.org/support/security/CVE-2026-14662/
report
https://access.redhat.com/security/cve/CVE-2026-14664
advisory
https://www.cve.org/CVERecord?id=CVE-2026-14664
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-14664
article
https://www.postgresql.org/support/security/CVE-2026-14664/
report
https://access.redhat.com/security/cve/CVE-2026-14668
advisory
https://www.cve.org/CVERecord?id=CVE-2026-14668
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-14668
article
https://www.postgresql.org/support/security/CVE-2026-14668/
report
https://access.redhat.com/security/cve/CVE-2026-14669

Red Hat Security Advisory: postgresql:16 security update

Fixed packages 37

Vulnerabilities 16

PostgreSQL tsvector and tsquery undersize allocations, via integer wraparound

PostgreSQL regexp heap buffer overflow executes arbitrary code

PostgreSQL to_char heap buffer overflow executes arbitrary code

PostgreSQL plperl tied object heap buffer overflow executes arbitrary code

PostgreSQL refint plan cache type confusion executes arbitrary code

PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound

PostgreSQL type confusion via "internal" arguments

PostgreSQL expression deparse allows SQL injection via EXTRACT argument

PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code

PostgreSQL psql \unrestrict lets superuser of pg_dump origin server execute arbitrary code in psql client

PostgreSQL pg_dump heap buffer overflow executes arbitrary code

PostgreSQL stack buffer overflow in argument match writes 0x0 and 0x1 to server memory

PostgreSQL ctid type confusion in selectivity estimator discloses derivative of arbitrary read

PostgreSQL psql COPY FROM STDIN early failure processes data lines as psql commands

PostgreSQL logical decoding can dlopen arbitrary file

References