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PostgreSQL CVE-2026-14668

| EUVDEUVD-2026-57835 HIGH
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-08-13 f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 GHSA-ph64-qjwg-mxwq
Information Disclosure Memory Corruption PostgreSQL
8.1
CVSS 3.1 · Vendor: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
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Severity by source

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

Description confirms only a memory read side-channel; no availability impact is stated, so A:N is assessed independently of the official vector's A:H.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SUSE
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
None
Availability
High

Lifecycle Timeline

3
Patch available
Aug 13, 2026 - 14:02 EUVD
Analysis Generated
Aug 13, 2026 - 13:34 vuln.today
CVE Published
Aug 13, 2026 - 13:17 cve.org
HIGH 8.1

DescriptionCVE.org

Type confusion regarding input of PostgreSQL ctid data type selectivity estimator allows an object creator to view a calculation derived from the value of an arbitrary 4-byte span of memory, via a chosen non-ctid input. While the calculation loses precision, substantial memory value recovery appears possible. 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

PostgreSQL's ctid data type selectivity estimator mishandles non-ctid input through a type confusion flaw (CWE-843), enabling any low-privileged database user with object-creation rights to read approximately 4 bytes of arbitrary server memory per query. All supported major versions prior to 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation The attacker must hold a valid PostgreSQL account with CREATE privilege on at least one schema, corresponding to the PR:L metric in the CVSS vector; read-only or login-only accounts without object creation rights cannot trigger the vulnerable code path. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.1 score (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H) reflects a network-reachable attack requiring only low database privileges with no user interaction, yielding high confidentiality impact. … 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 the patched releases - PostgreSQL 18.5, 17.11, 16.15, 15.19, or 14.24 - as documented in the vendor advisory at https://www.postgresql.org/support/security/CVE-2026-14668/. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, audit database user permissions and immediately revoke object-creation privileges from all non-administrator accounts-this vulnerability requires authentication, so privilege restriction provides immediate risk reduction. …

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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-2026-14668 vulnerability details – vuln.today
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