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Red Hat Security Advisory: postgresql security update

0
Medium
Published: 01/08/2026 (01/08/2026, 00:18:42 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: CREATE STATISTICS does not check for schema CREATE privilege (CVE-2025-12817) * postgresql: libpq undersizes allocations, via integer wraparound (CVE-2025-12818) 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

redhat/postgresql16
pkg:rpm/redhat/postgresql16
Affected versions
<16.11

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/25/2026, 22:03:32 UTC

Technical Analysis

Red Hat Product Security issued an advisory (RHSA-2026:0456) for PostgreSQL 16 addressing two vulnerabilities: CVE-2025-12817 where the CREATE STATISTICS command does not verify schema CREATE privileges, potentially allowing unauthorized actions, and CVE-2025-12818 where the libpq client library undersizes memory allocations due to integer wraparound, which could lead to memory corruption. The advisory applies to PostgreSQL 16 packages for Red Hat Enterprise Linux 10.0 Extended Update Support and related builder products. Red Hat has released updated packages containing fixes for these vulnerabilities. No CVSS scores are provided in the advisory, but the impact is rated as moderate.

Potential Impact

The first vulnerability (CVE-2025-12817) could allow a user to execute CREATE STATISTICS without proper schema CREATE privileges, potentially leading to unauthorized database schema modifications. The second vulnerability (CVE-2025-12818) involves memory allocation undersizing in the libpq client library due to integer wraparound, which could cause memory corruption or instability in client applications using libpq. Both vulnerabilities have a moderate security impact as rated by Red Hat. There are no known exploits in the wild at the time of the advisory.

Mitigation Recommendations

Red Hat has released updated PostgreSQL 16 packages for Red Hat Enterprise Linux 10.0 Extended Update Support that address these vulnerabilities. Users should apply these official security updates as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate the issues. No additional mitigations are specified or required beyond applying the vendor-provided patches.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:0456
Cve Count
2
Additional Cves
["CVE-2025-12818"]

Threat ID: 6a3da1cb4853345fc18229e1

Added to database: 06/25/2026, 21:46:51 UTC

Last enriched: 06/25/2026, 22:03:32 UTC

Last updated: 09/10/2026, 19:36:49 UTC

Views: 47

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