Vulnerability-Lookup

CVE-2026-6476 (GCVE-0-2026-6476)

Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-15 03:56

Title

PostgreSQL pg_createsubscriber allows SQL injection via subscription name

Summary

SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-14 00:00 UTC

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

PostgreSQL redhat root

References

1 reference

URL	Tags
https://www.postgresql.org/support/security/CVE-2…

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	PostgreSQL	Affected: 18 , < 18.4 (rpm) Affected: 17 , < 17.10 (rpm)

Credits

The PostgreSQL project thanks Yu Kunpeng for reporting this problem.

Show details on NVD website

JSON

To clipboard

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bit-postgresql-2026-6476

Vulnerability from bitnami_vulndb

Published

2026-05-18 05:53

Modified

2026-09-08 08:34

Summary

PostgreSQL pg_createsubscriber allows SQL injection via subscription name

Details

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "postgresql",
        "purl": "pkg:bitnami/postgresql"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "17.0.0"
            },
            {
              "fixed": "17.10.0"
            },
            {
              "introduced": "18.0.0"
            },
            {
              "fixed": "18.4.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-6476"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser.  The attack takes effect when pg_createsubscriber next runs.  Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected.  Versions before PostgreSQL 17 are unaffected.",
  "id": "BIT-postgresql-2026-6476",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2026-05-18T05:53:03.395Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6476"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.postgresql.org/support/security/CVE-2026-6476/"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "PostgreSQL pg_createsubscriber allows SQL injection via subscription name"
}

CERTFR-2026-AVI-0595

Vulnerability from certfr_avis - Published: 2026-05-15 - Updated: 2026-05-15

De multiples vulnérabilités ont été découvertes dans PostgreSQL. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
PostgreSQL	N/A	PostgreSQL versions 18.x antérieures à 18.4
PostgreSQL	N/A	PostgreSQL versions 15.x antérieures à 15.18
PostgreSQL	N/A	PostgreSQL versions 14.x antérieures à 14.23
PostgreSQL	N/A	PostgreSQL versions 16.x antérieures à 16.14
PostgreSQL	N/A	PostgreSQL versions 17.x antérieures à 17.10

References

Title

Publication Time

FKIE_CVE-2026-6476

Vulnerability from fkie_nvd - Published: 2026-05-14 14:16 - Updated: 2026-06-17 11:00

Severity

7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	f86ef6dc-4d3a-42ad-8f28-e6d5547a5007	https://www.postgresql.org/support/security/CVE-2026-6476/	Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	postgresql	postgresql	*
	postgresql	postgresql	*

JSON

To clipboard

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    {
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              "status": "affected",
              "version": "17",
              "versionType": "rpm"
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    }
  ],
  "id": "CVE-2026-6476",
  "lastModified": "2026-06-17T11:00:51.540",
  "metrics": {
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    }
  ]
}

GHSA-9CRW-Q654-RWGR

Vulnerability from github – Published: 2026-05-14 15:31 – Updated: 2026-05-14 15:31

Details

Severity

7.2 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-6476"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-89"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-14T14:16:25Z",
    "severity": "HIGH"
  },
  "details": "SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser.  The attack takes effect when pg_createsubscriber next runs.  Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected.  Versions before PostgreSQL 17 are unaffected.",
  "id": "GHSA-9crw-q654-rwgr",
  "modified": "2026-05-14T15:31:58Z",
  "published": "2026-05-14T15:31:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6476"
    },
    {
      "type": "WEB",
      "url": "https://www.postgresql.org/support/security/CVE-2026-6476"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

OPENSUSE-SU-2026:10809-1

Vulnerability from csaf_opensuse - Published: 2026-05-18 00:00 - Updated: 2026-05-18 00:00

Summary

postgresql17-17.10-1.1 on GA media

Severity

Moderate

Scope

10 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Recommended: 48 products

Open the full advisory

OPENSUSE-SU-2026:10828-1

Vulnerability from csaf_opensuse - Published: 2026-05-20 00:00 - Updated: 2026-05-20 00:00

Summary

libecpg6-18.4-1.1 on GA media

Severity

Moderate

Scope

11 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Recommended: 64 products

Open the full advisory

RHSA-2026:22878

Vulnerability from csaf_redhat - Published: 2026-06-03 14:53 - Updated: 2026-09-14 11:48

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

11 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

A flaw was found in PostgreSQL. An attacker with `pg_create_subscription` rights can exploit a SQL injection vulnerability in the `pg_createsubscriber` utility. This allows the attacker to execute arbitrary SQL commands with superuser privileges when `pg_createsubscriber` is next run, leading to potential compromise of the database system.

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:22878

Open the full advisory

RHSA-2026:26204

Vulnerability from csaf_redhat - Published: 2026-06-16 12:18 - Updated: 2026-09-14 11:48

Summary

Red Hat Security Advisory: postgresql:18 security update

Severity

Important

Scope

11 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Fixed: 199 products

https://access.redhat.com/errata/RHSA-2026:26204

Open the full advisory

RHSA-2026:27742

Vulnerability from csaf_redhat - Published: 2026-06-22 06:10 - Updated: 2026-09-14 11:48

Summary

Red Hat Security Advisory: postgresql18 security update

Severity

Important

Scope

11 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Fixed: 106 products

https://access.redhat.com/errata/RHSA-2026:27742

Open the full advisory

RHSA-2026:67280

Vulnerability from csaf_redhat - Published: 2026-09-14 11:20 - Updated: 2026-09-15 17:21

Summary

Red Hat Security Advisory: postgresql18 security update

Severity

Important

Scope

19 vulnerabilities in this advisory, including CVE-2026-6476.

CVE-2026-6476

7.2 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Fixed: 106 products

https://access.redhat.com/errata/RHSA-2026:67280

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-6476 (GCVE-0-2026-6476)

Vulnerability from bitnami_vulndb

Solutions

Tags

Sightings

Nomenclature

Related by attack behaviour