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Full vulnerability report · 2026
CVE-2026-16238High confidence

PostgreSQL type confusion in pg_restore_attribute_stats() executes arbitrary code

Unknown · PostgreSQL

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.41% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown PostgreSQL and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

13 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · communitypostgresql16Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.16.15-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.23v3.23 · mainpostgresql17Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.17.11-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.23v3.23 · mainpostgresql18Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.18.5-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · communitypostgresql15Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.15.19-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · mainpostgresql16Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.16.15-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainpostgresql17Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.17.11-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · communitypostgresql15Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.15.19-r0Alpine Security Database ↗Source updated 19 Aug 2026
Alpine v3.21v3.21 · mainpostgresql16Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.16.15-r0Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainpostgresql17Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.17.11-r0Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcepostgresql-17Not affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcepostgresql-15Not affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcepostgresql-18Vendor fix publishedDebian records a fixed source-package version for this release.18.6-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcepostgresql-18Vendor fix publishedDebian records a fixed source-package version for this release.18.6-1Debian Security Tracker ↗Source updated 6 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-16238 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitypostgresql: PostgreSQL: Arbitrary code execution via type confusion in pg_restore_attribute_stats()
305 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • postgresql18-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-0:18.6-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql18-contrib-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
Summary
A flaw was found in PostgreSQL. An object creator can exploit a type confusion vulnerability in the `pg_restore_attribute_stats()` function. This flaw occurs due to the conflation of range and multirange values, allowing the attacker to execute arbitrary code as the operating system user running the database. This could lead to a complete compromise of the database system.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-57848

No EUVD known-exploited evidence

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

What

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

Why

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

Why

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Access of Resource Using Incompatible Type ('Type Confusion') → execute code or commands in the affected security context
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-843 ↗

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion'). The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkRemote code executionCWE-843
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-57848Official EUVD mapping

Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code as the operating system user running the database, via conflation of range and multirange values. Within major version 18, minor versions before PostgreSQL 18.6 are affected. Versions before PostgreSQL 18 are unaffected.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2844PostgreSQL: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in PostgreSQL ausnutzen, um beliebigen Programmcode auszuführen, SQL-Injection-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260819Security Bulletin 19 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Aug 2026, published on 19 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1024Multiples vulnérabilités dans PostgreSQL

d?id=CVE-2026-14673 Référence CVE CVE-2026-14676 https://www.cve.org/CVERecord?id=CVE-2026-14676 Référence CVE CVE-2026-14677 https://www.cve.org/CVERecord?id=CVE-2026-14677 Référence CVE CVE-2026-14678 https://www.cve.org/CVERecord?id=CVE-2026-14678 Référence CVE CVE-2026-14679 https://www.cve.org/CVERecord?id=CVE-2026-14679 Référence CVE CVE-2026-14680 https://www.cve.org/CVERecord?id=CVE-2026-14680 Référence CVE CVE-2026-14681 https://www.cve.org/CVERecord?id=CVE-2026-14681 Référence CVE CVE-2026-15741 https://www.cve.org/CVERecord?id=CVE-2026-15741 Référence CVE CVE-2026-15742 https://www.cve.org/CVERecord?id=CVE-2026-15742 Référence CVE CVE-2026-16238 https://www.cve.org/CVERecord?id=CVE-2026-16238 Référence CVE CVE-2026-16239 https://www.cve.org/CVERecord?id=CVE-2026-16239 Référence CVE CVE-2026-16241 https://www.cve.org/CVERecord?id=CVE-2026-16241 Référence CVE CVE-2026-18024 https://www.cve.org/CVERecord?id=CVE-2026-18024 Référence CVE CVE-2026-18408 https://www.cve.org/CVERecord?id=CVE-2026-18408 Référence CVE CVE-2026-19385 https://www.cve.org/CVERecord?id=CVE-2026-19385 Référence CVE CVE-2026-6464 https://www.cve.org/CVERecord?id=CVE-2026-6464 Référence CVE CVE-2026-6469 https://www.cve.org/CVERecord?id=CVE-2026-6469 Référence CVE CVE-2026-6470 https://www.cve.org/CVERecord?id=CVE-2

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-029277PostgreSQL.orgのPostgreSQLにおける型の取り違えに関する脆弱性

PostgreSQLのpg_restore_attribute_stats()における型の混同により、オブジェクトの作成者が範囲値と多範囲値の合成を介して、データベースを実行しているオペレーティングシステムユーザーとして任意のコードを実行できる可能性があります。メジャーバージョン18のうち、PostgreSQL 18.5より前のマイナーバージョンが影響を受けます。PostgreSQL 18未満のバージョンには影響がありません。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6921PostgreSQL 제품 보안 업데이트 권고

PostgreSQL에서 발생하는 Type Confusion 취약점(CVE-2026-16238) [1][16]

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
PostgreSQL: 18 < 18.6
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 13 Aug 2026 · Last source change 29 Aug 2026, 23:07 UTC · CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-57848
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    18 < 18.6 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    18 < 18.6 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
    Red Hat Product Security ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    postgresql-contrib (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-docs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plperl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plpython3 (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-pltcl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-libs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-static (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test-rpm-macros (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql.src (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql (postgresql:18) as a component of Red Hat Enterprise Linux 9 · Fixed: postgresql18-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-plperl-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 76 more
    After
    Fixed: postgresql18-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-plperl-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 275 more
    Red Hat Product Security ↗
  4. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-16238 to remediation: access.redhat.com/CVE-2026-16238.
    Before
    remediation: access.redhat.com/CVE-2026-16238
    After
    remediation: access.redhat.com/CVE-2026-16238
    Red Hat Product Security ↗
  5. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    postgresql18 as a component of Red Hat Enterprise Linux 10; postgresql18-contrib as a component of Red Hat Enterprise Linux 10; postgresql18-docs as a component of Red Hat Enterprise Linux 10; postgresql18-plperl as a component of Red Hat Enterprise Linux 10; postgresql18-plpython3 as a component of Red Hat Enterprise Linux 10; postgresql18-private-devel as a component of Red Hat Enterprise Linux 10; postgresql18-private-libs as a component of Red Hat Enterprise Linux 10; postgresql18-server as a component of Red Hat Enterprise Linux 10; postgresql18-server-devel as a component of Red Hat Enterprise Linux 10; postgresql18-static as a component of Red Hat Enterprise Linux 10; postgresql18-test as a component of Red Hat Enterprise Linux 10; postgresql18-test-rpm-macros as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade-devel as a component of Red Hat Enterprise Linux 10; postgresql18.src as a component of Red Hat Enterprise Linux 10; postgresql-contrib (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-docs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plperl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plpython3 (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-pltcl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-libs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-static (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test-rpm-macros (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql.src (postgresql:18) as a component of Red Hat Enterprise Linux 9; and 1 more
    After
    postgresql-contrib (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-docs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plperl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plpython3 (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-pltcl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-libs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-static (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test-rpm-macros (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql.src (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql (postgresql:18) as a component of Red Hat Enterprise Linux 9 · Fixed: postgresql18-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-contrib-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-debugsource-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-docs-debuginfo-0:18.6-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); postgresql18-plperl-0:18.6-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 76 more
    Red Hat Product Security ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    18 < 18.5 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    18 < 18.6 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  8. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-16238 to remediation: access.redhat.com/CVE-2026-16238.
    Before
    remediation: access.redhat.com/CVE-2026-16238
    After
    remediation: access.redhat.com/CVE-2026-16238
    Red Hat Product Security ↗
  9. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    Red Hat Product Security ↗
  10. Affected versionsThe structured affected or fixed version information changed.
    Before
    After
    postgresql18 as a component of Red Hat Enterprise Linux 10; postgresql18-contrib as a component of Red Hat Enterprise Linux 10; postgresql18-docs as a component of Red Hat Enterprise Linux 10; postgresql18-plperl as a component of Red Hat Enterprise Linux 10; postgresql18-plpython3 as a component of Red Hat Enterprise Linux 10; postgresql18-private-devel as a component of Red Hat Enterprise Linux 10; postgresql18-private-libs as a component of Red Hat Enterprise Linux 10; postgresql18-server as a component of Red Hat Enterprise Linux 10; postgresql18-server-devel as a component of Red Hat Enterprise Linux 10; postgresql18-static as a component of Red Hat Enterprise Linux 10; postgresql18-test as a component of Red Hat Enterprise Linux 10; postgresql18-test-rpm-macros as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade-devel as a component of Red Hat Enterprise Linux 10; postgresql18.src as a component of Red Hat Enterprise Linux 10; postgresql-contrib (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-docs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plperl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-plpython3 (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-pltcl (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-private-libs (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-server (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-static (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test-rpm-macros (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-test (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade-devel (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql-upgrade (postgresql:18) as a component of Red Hat Enterprise Linux 9; postgresql.src (postgresql:18) as a component of Red Hat Enterprise Linux 9; and 1 more
    Red Hat Product Security ↗
  11. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: postgresql.org/CVE-2026-16238.
    Before
    no authoritative guidance recorded
    After
    vendor advisory: postgresql.org/CVE-2026-16238
    postgresql.org ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-57848↗Red Hat Product Security security advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-16238 · cve.blacktree.nl