Skip to content
Heist/ feed
UnratedFix available

ALPINE-CVE-2026-6638

Type: advisorySource: OSV1 source record

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.

Announced Group revision 1
Original source ↗

ALPINE-CVE-2026-6638

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-2026-6638

postgresql16

Source reference: /affected/0/package/name

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

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

postgresql16

Source reference: /affected/1/package/name

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

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

postgresql16

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
16.14-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

postgresql17

Source reference: /affected/4/package/name

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

Source reference: /affected/4/ranges

Prerequisites
Not stated in this record

postgresql17

Source reference: /affected/5/package/name

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

Source reference: /affected/5/ranges

Prerequisites
Not stated in this record

postgresql17

Source reference: /affected/6/package/name

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

Source reference: /affected/6/ranges

Prerequisites
Not stated in this record

postgresql18

Source reference: /affected/7/package/name

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

Source reference: /affected/7/ranges

Prerequisites
Not stated in this record

postgresql18

Source reference: /affected/8/package/name

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

Source reference: /affected/8/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": "16.14-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql16",
      "purl": "pkg:apk/alpine/postgresql16?arch=source",
      "ecosystem": "Alpine:v3.20"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6638.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "16.14-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql16",
      "purl": "pkg:apk/alpine/postgresql16?arch=source",
      "ecosystem": "Alpine:v3.21"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6638.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "16.14-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "postgresql16",
      "purl": "pkg:apk/alpine/postgresql16?arch=source",
      "ecosystem": "Alpine:v3.22"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6638.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:v3.21"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-6638.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-2026-6638.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-2026-6638.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-2026-6638.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-2026-6638.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-2026-6638.json"
    },
    "ecosystem_specific": {}
  }
]

Publisher severity

No explicit severity was provided.

Event
#54636 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. ALPINE-CVE-2026-6638 · Revision 1Source updated