Red Hat Security Advisory: postgresql:16 security update
PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: PostgreSQL oidvector discloses a few bytes of memory (CVE-2026-2003) * postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code (CVE-2026-2006) * postgresql: PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code (CVE-2026-2004) * postgresql: PostgreSQL pgcrypto heap buffer overflow executes arbitrary code (CVE-2026-2005) 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.
AI Analysis
Technical Summary
This advisory covers several vulnerabilities in PostgreSQL affecting Red Hat Enterprise Linux 9. CVE-2026-2006 involves missing validation of multibyte character length, CVE-2026-2004 concerns missing validation of input type to the intarray selectivity estimator, and CVE-2026-2005 is a heap buffer overflow in the pgcrypto module. Each vulnerability allows for arbitrary code execution. Red Hat has released updated PostgreSQL packages to fix these issues as detailed in RHSA-2026:3730.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code on affected systems running vulnerable PostgreSQL versions. This could lead to compromise of the database server and potentially the underlying host system. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated PostgreSQL packages for Red Hat Enterprise Linux 9 to address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:3730 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the official patches.
Red Hat Security Advisory: postgresql:16 security update
Description
PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: PostgreSQL oidvector discloses a few bytes of memory (CVE-2026-2003) * postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code (CVE-2026-2006) * postgresql: PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code (CVE-2026-2004) * postgresql: PostgreSQL pgcrypto heap buffer overflow executes arbitrary code (CVE-2026-2005) 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 software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers several vulnerabilities in PostgreSQL affecting Red Hat Enterprise Linux 9. CVE-2026-2006 involves missing validation of multibyte character length, CVE-2026-2004 concerns missing validation of input type to the intarray selectivity estimator, and CVE-2026-2005 is a heap buffer overflow in the pgcrypto module. Each vulnerability allows for arbitrary code execution. Red Hat has released updated PostgreSQL packages to fix these issues as detailed in RHSA-2026:3730.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code on affected systems running vulnerable PostgreSQL versions. This could lead to compromise of the database server and potentially the underlying host system. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of this advisory.
Mitigation Recommendations
Red Hat has released updated PostgreSQL packages for Red Hat Enterprise Linux 9 to address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:3730 and the referenced article https://access.redhat.com/articles/11258. No additional mitigations are specified or required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3730
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-2004","CVE-2026-2005","CVE-2026-2006"]
- Cvss Version
- null
Threat ID: 6a3da1c34853345fc181effe
Added to database: 06/25/2026, 21:46:43 UTC
Last enriched: 07/03/2026, 00:43:58 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 26
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