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ALPINE-CVE-2026-6476

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

ALPINE-CVE-2026-6476

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:ALPINE-CVE-2026-6476

postgresql17

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
17.10-r0

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

postgresql17

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
17.10-r0

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

postgresql17

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
17.10-r0

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

postgresql17

Source reference: /affected/3/package/name

Affected versions
Not stated in this record
Fixed versions
17.10-r0

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

postgresql18

Source reference: /affected/4/package/name

Affected versions
Not stated in this record
Fixed versions
18.4-r0

Source reference: /affected/4/ranges

Prerequisites
Not stated in this record

postgresql18

Source reference: /affected/5/package/name

Affected versions
Not stated in this record
Fixed versions
18.4-r0

Source reference: /affected/5/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "17.10-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql17",
      "purl": "pkg:apk/alpine/postgresql17?arch=source",
      "ecosystem": "Alpine:v3.21"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "17.10-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql17",
      "purl": "pkg:apk/alpine/postgresql17?arch=source",
      "ecosystem": "Alpine:v3.22"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "17.10-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql17",
      "purl": "pkg:apk/alpine/postgresql17?arch=source",
      "ecosystem": "Alpine:v3.23"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "17.10-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql17",
      "purl": "pkg:apk/alpine/postgresql17?arch=source",
      "ecosystem": "Alpine:v3.24"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "18.4-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql18",
      "purl": "pkg:apk/alpine/postgresql18?arch=source",
      "ecosystem": "Alpine:v3.23"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "18.4-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql18",
      "purl": "pkg:apk/alpine/postgresql18?arch=source",
      "ecosystem": "Alpine:v3.24"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6476.json"
    },
    "ecosystem_specific": {}
  }
]

Publisher severity

No explicit severity was provided.

Event
#54627 · Revision 1
Added to Heist Feed
Publisher date
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