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SUSE PostgreSQL16 Key Update Vulnerability Mitigation SUSE-SU-2026-0883

Linuxsecurity •LinuxSecurity Advisories • March 12, 2026

## This update for postgresql16 fixes the following issues: Update to version 16.13 (bsc#1258754). Security issues fixed: * CVE-2026-2003: improper validation of type "oidvector" may allow disclose a few bytes of server memory (bsc#1258008). * CVE-2026-2004: intarray missing validation of type of input to selectivity estimator could lead to arbitrary code execution (bsc#1258009). * CVE-2026-2005: buffer overrun in contrib/pgcrypto's PGP decryption functions could lead to arbitrary code execution (bsc#1258010). * CVE-2026-2006: inadequate validation of multibyte character lengths could lead to arbitrary code execution (bsc#1258011). Regression fixes: * the substring() function raises an error "invalid byte sequence for encoding" on non-ASCII text values if the source of that value is a database Read the Full Advisory

* bsc#1258008 * bsc#1258009 * bsc#1258010 * bsc#1258011 * bsc#1258754 Cross- * CVE-2026-2003 * CVE-2026-2004 * CVE-2026-2005 * CVE-2026-2006 CVSS scores: * CVE-2026-2003 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N * CVE-2026-2003 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N * CVE-2026-2004 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-2004 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-2005 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-2005 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-2006 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-2006 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Affected Products: Read the Full Advisory

* CVE-2026-2003 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2026-2003 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2026-2004 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2004 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2005 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2005 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2006 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2006 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Read the Full Advisory

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Vulnerabilities in PostgreSQL 18 and 16 Require Immediate Attention On March 12, 2026, updates for PostgreSQL versions 16 and 18 were released, addressing multiple critical vulnerabilities. Key issues include CVE-2026-2003, CVE-2026-2004, CVE-2026-2005, CVE-2026-2006, and CVE-2026-2007, all published on February 12, 2026. These vulnerabilities could lead to arbitrary code execution and memory disclosure, affecting server security. Users of openSUSE and SUSE Linux Enterprise are particularly at risk and are advised to apply the patches immediately. The updates also include regression fixes for issues related to the substring() function and multibyte character handling. The vulnerabilities are significant, with CVE-2026-2004, CVE-2026-2005, and CVE-2026-2006 rated 8.8 on the CVSS scale, indicating high severity. The current status is that patches are available, and users are urged to update their systems promptly. 3 sources 72

Extracted Entities

CVEs (4)

CVE-2026-2003 CVE-2026-2004 CVE-2026-2005 CVE-2026-2006