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PostgreSQL CVE-2026-14671

| EUVDEUVD-2026-57858 HIGH
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-08-13 f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 GHSA-c4j6-v5f3-8f3c
RCE PostgreSQL Memory Corruption Red Hat
8.8
CVSS 3.1 · Vendor: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
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Severity by source

Vendor (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Network vector confirmed by database access model; PR:L reflects required object creation privileges; S:U as OS user impact remains within PostgreSQL's security scope.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
8.8 HIGH
qualitative

Primary rating from Vendor (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007).

CVSS VectorVendor: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Aug 13, 2026 - 14:02 EUVD
Analysis Generated
Aug 13, 2026 - 13:35 vuln.today
CVE Published
Aug 13, 2026 - 13:17 cve.org
HIGH 8.8

DescriptionCVE.org

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 "refint: Remove plan cache.", without a CVE number. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Articles & Coverage 2

News 18 New PostgreSQL Vulnerabilities - 18 High Severity, No POC Available Aug 14, 2026 News 18 New PostgreSQL Vulnerabilities - 18 High Severity, No POC Available Aug 13, 2026

AnalysisAI

Type confusion in PostgreSQL's 'refint' contrib module enables any low-privileged database user with object creation rights to execute arbitrary code as the operating system user hosting the PostgreSQL service. Affected are all active PostgreSQL branches prior to versions 18.5, 17.11, 16.15, 15.19, and 14.24. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation The attacker must hold a valid PostgreSQL database account with CREATE privileges on at least one schema or database - specifically the ability to create objects (tables, triggers) that interact with the refint contrib extension. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects a genuine high-severity issue: network-exploitable, low-complexity exploitation requiring only a low-privileged database account with object creation rights. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to PostgreSQL 18.5, 17.11, 16.15, 15.19, or 14.24 - whichever corresponds to the active branch in use - to apply the fix introduced by the 'refint: Remove plan cache.' commit. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all PostgreSQL deployments to identify affected versions (prior to 18.5, 17.11, 16.15, 15.19, or 14.24) and confirm whether the 'refint' contrib module is enabled. …

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Affected

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CVE-2026-14671 vulnerability details – vuln.today
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