The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1946-1 advisory.

    This update for postgresql18 fixes the following issues

    Update to version 18.4.

    Security issues:

    - CVE-2026-6472: ensure the user has CREATE privilege on the schema specified (bsc#1265172).
    - CVE-2026-6473: integer overflows in memory-allocation calculations (bsc#1265173).
    - CVE-2026-6474: Guard against malicious time zone names (bsc#1265174).
    - CVE-2026-6475: Prevent path traversal in pg_basebackup and pg_rewind (bsc#1265175).
    - CVE-2026-6476: Properly quote subscription names in pg_createsubscriber (bsc#1265176).
    - CVE-2026-6477: Mark PQfn() as unsafe, and avoid using it within libpq (bsc#1265177).
    - CVE-2026-6478: Use timing-safe string comparisons in authentication code (bsc#1265178).
    - CVE-2026-6479: Prevent unbounded recursion while processing startup packets (bsc#1265179).
    - CVE-2026-6575: Detect faulty input when restoring attribute MCV statistics (bsc#1265180).
    - CVE-2026-6637: Prevent SQL injection and buffer overruns in contrib/spi (bsc#1265181).
    - CVE-2026-6638: Properly quote object names in logical replication origin checks (bsc#1265182).

    Non security issue:

    - Get rid of update-alternatives for openSUSE/SLE 16.0 and newer to support immutable systems and     transactional       updates (jsc#PED-14820).
    - /usr/bin/pg_config is missing after migrating away from update-alternatives (bsc#1263804).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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:

    CVE-2026-6637:
    Stack buffer overflow in PostgreSQL module refint allows an unprivileged database user to execute     arbitrary code as the operating system user running the database.  A distinct attack is possible if the     application declares a user-controlled column as a refint cascade primary key and facilitates user-     controlled updates to that column.  In that case, a SQL injection allows a primary key update value     provider to execute arbitrary SQL as the database user performing the primary key update.  Versions before     PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6477:
    Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(),     lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack     buffer with an arbitrarily-large response.  Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-     length, server-determined data into a buffer of unspecified size.  Because both the \lo_export command in     psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory.
    Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6475:
    Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind 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 origin superuser, due     to features like shared_preload_libraries.  Hence, the attack has practical implications only if one takes     relevant action between these commands and server start, like moving the files to a different VM or     snapshotting the VM.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6473:
    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 inputs to the     relevant database functions, the application input provider may achieve a segmentation fault.  Versions     before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6472:
    Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use     search_path 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 18.4, 17.10,     16.14, 15.18, and 14.23 are affected.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2303-1 advisory.

    This update for postgresql17 fixes the following issues

    Update to version 17.10.

    Security issues:

    - CVE-2026-6472: ensure the user has CREATE privilege on the schema specified (bsc#1265172).
    - CVE-2026-6473: integer overflows in memory-allocation calculations (bsc#1265173).
    - CVE-2026-6474: Guard against malicious time zone names (bsc#1265174).
    - CVE-2026-6475: Prevent path traversal in pg_basebackup and pg_rewind (bsc#1265175).
    - CVE-2026-6476: Properly quote subscription names in pg_createsubscriber (bsc#1265176).
    - CVE-2026-6477: Mark PQfn() as unsafe, and avoid using it within libpq (bsc#1265177).
    - CVE-2026-6478: Use timing-safe string comparisons in authentication code (bsc#1265178).
    - CVE-2026-6479: Prevent unbounded recursion while processing startup packets (bsc#1265179).
    - CVE-2026-6637: Prevent SQL injection and buffer overruns in contrib/spi (bsc#1265181).
    - CVE-2026-6638: Properly quote object names in logical replication origin checks (bsc#1265182).

    Non security issue:

    - Get rid of update-alternatives for openSUSE/SLE 16.0 and newer to support immutable systems and     transactional       updates (jsc#PED-14825 bsc#1245875).
    - /usr/bin/pg_config is missing after migrating away from update-alternatives (bsc#1263804).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0650 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2026-6473:
    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 inputs to the     relevant database functions, the application input provider may achieve a segmentation fault.  Versions     before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6475:
    Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind 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 origin superuser, due     to features like shared_preload_libraries.  Hence, the attack has practical implications only if one takes     relevant action between these commands and server start, like moving the files to a different VM or     snapshotting the VM.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6477:
    Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(),     lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack     buffer with an arbitrarily-large response.  Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-     length, server-determined data into a buffer of unspecified size.  Because both the \lo_export command in     psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory.
    Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

    CVE-2026-6478:
    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 passwords originating     in upgrades from PostgreSQL 13 or earlier.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and     14.23 are affected.

    CVE-2026-6637:
    Stack buffer overflow in PostgreSQL module refint allows an unprivileged database user to execute     arbitrary code as the operating system user running the database.  A distinct attack is possible if the     application declares a user-controlled column as a refint cascade primary key and facilitates user-     controlled updates to that column.  In that case, a SQL injection allows a primary key update value     provider to execute arbitrary SQL as the database user performing the primary key update.  Versions before     PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
315292	SUSE SLES12 Security Update : postgresql18 (SUSE-SU-2026:1946-1)	Nessus	SuSE Local Security Checks	2026/5/19	2026/5/22	high
319725	TencentOS Server 4: postgresql (TSSA-2026:0343)	Nessus	Tencent Local Security Checks	2026/6/8	2026/6/8	high
321035	SUSE SLES15 Security Update : postgresql17 (SUSE-SU-2026:2303-1)	Nessus	SuSE Local Security Checks	2026/6/14	2026/6/14	high
328427	TencentOS Server 3: postgresql:13 (TSSA-2026:0650)	Nessus	Tencent Local Security Checks	2026/7/20	2026/7/20	high

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