usn-8294-1
Vulnerability from osv_ubuntu
Published
2026-05-21 20:39
Modified
2026-06-30 15:55
Summary
postgresql-14, postgresql-16, postgresql-17, postgresql-18 vulnerabilities
Details

It was discovered that PostgreSQL did not correctly enforce authorization for CREATE TYPE. An attacker could possibly use this issue to execute arbitrary SQL functions. (CVE-2026-6472)

It was discovered that PostgreSQL incorrectly handled large user input in multiple server features. An attacker could possibly use this issue to cause PostgreSQL to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-6473)

It was discovered that PostgreSQL incorrectly handled format strings in the timeofday() function. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-6474)

It was discovered that PostgreSQL incorrectly followed symbolic links in pg_basebackup and pg_rewind. An attacker could possibly use this issue to overwrite local files and execute arbitrary code. (CVE-2026-6475)

It was discovered that PostgreSQL had an SQL injection vulnerability in pg_createsubscriber. An attacker could possibly use this issue to execute arbitrary SQL as a superuser. This issue only affected Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-6476)

It was discovered that PostgreSQL used an unsafe libpq function in large object operations. An attacker could possibly use this issue to overwrite client memory and execute arbitrary code. (CVE-2026-6477)

It was discovered that PostgreSQL did not compare MD5-hashed passwords in constant time. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-6478)

It was discovered that PostgreSQL had uncontrolled recursion during SSL and GSS negotiation. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-6479)

It was discovered that PostgreSQL incorrectly handled array length mismatches in pg_restore_attribute_stats(). An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-6575)

It was discovered that PostgreSQL had a stack buffer overflow in the refint module. An attacker could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-6637)

It was discovered that PostgreSQL had an SQL injection vulnerability in logical replication REFRESH PUBLICATION. An attacker could possibly use this issue to execute arbitrary SQL. This issue only affected Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-6638)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-6472",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6473",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6474",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6475",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6476",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6477",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6478",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6479",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6575",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6637",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6638",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-client-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-doc-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-plperl-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-14",
            "binary_version": "14.23-0ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "postgresql-14",
        "purl": "pkg:deb/ubuntu/postgresql-14@14.23-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.23-0ubuntu0.22.04.1"
            }
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        "14.2-1",
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        "14.4-0ubuntu0.22.04.1",
        "14.5-0ubuntu0.22.04.1",
        "14.6-0ubuntu0.22.04.1",
        "14.7-0ubuntu0.22.04.1",
        "14.8-0ubuntu0.22.04.1",
        "14.9-0ubuntu0.22.04.1",
        "14.10-0ubuntu0.22.04.1",
        "14.11-0ubuntu0.22.04.1",
        "14.12-0ubuntu0.22.04.1",
        "14.13-0ubuntu0.22.04.1",
        "14.15-0ubuntu0.22.04.1",
        "14.17-0ubuntu0.22.04.1",
        "14.18-0ubuntu0.22.04.1",
        "14.19-0ubuntu0.22.04.1",
        "14.20-0ubuntu0.22.04.1",
        "14.22-0ubuntu0.22.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-6472",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6473",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6474",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6475",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6476",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6477",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6478",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6479",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6575",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6637",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6638",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-client-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-doc-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-plperl-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-16",
            "binary_version": "16.14-0ubuntu0.24.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "postgresql-16",
        "purl": "pkg:deb/ubuntu/postgresql-16@16.14-0ubuntu0.24.04.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "16.14-0ubuntu0.24.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "16.0-2",
        "16.1-1",
        "16.1-1build1",
        "16.1-1build3",
        "16.2-1",
        "16.2-1ubuntu2",
        "16.2-1ubuntu3",
        "16.2-1ubuntu4",
        "16.3-0ubuntu0.24.04.1",
        "16.4-0ubuntu0.24.04.1",
        "16.4-0ubuntu0.24.04.2",
        "16.6-0ubuntu0.24.04.1",
        "16.8-0ubuntu0.24.04.1",
        "16.9-0ubuntu0.24.04.1",
        "16.10-0ubuntu0.24.04.1",
        "16.11-0ubuntu0.24.04.1",
        "16.13-0ubuntu0.24.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-6472",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6473",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6474",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6475",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6476",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6477",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6478",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6479",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6575",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6637",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6638",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-client-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-doc-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-plperl-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-plpython3-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-pltcl-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          },
          {
            "binary_name": "postgresql-server-dev-17",
            "binary_version": "17.10-0ubuntu0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "postgresql-17",
        "purl": "pkg:deb/ubuntu/postgresql-17@17.10-0ubuntu0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "17.10-0ubuntu0.25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "17.4-1",
        "17.4-2",
        "17.5-1",
        "17.5-1build1",
        "17.6-1",
        "17.6-1build1",
        "17.7-0ubuntu0.25.10.1",
        "17.9-0ubuntu0.25.10.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-6472",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6473",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6474",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6475",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6476",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6477",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6478",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6479",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6575",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6637",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-6638",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "libpq-oauth",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-18-jit",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-client-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-doc-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-plperl-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-18",
            "binary_version": "18.4-0ubuntu0.26.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "postgresql-18",
        "purl": "pkg:deb/ubuntu/postgresql-18@18.4-0ubuntu0.26.04.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "18.4-0ubuntu0.26.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "18.0-1",
        "18.1-1",
        "18.1-1ubuntu1",
        "18.1-1ubuntu2",
        "18.1-2",
        "18.3-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that PostgreSQL did not correctly enforce authorization\nfor CREATE TYPE. An attacker could possibly use this issue to execute\narbitrary SQL functions. (CVE-2026-6472)\n\nIt was discovered that PostgreSQL incorrectly handled large user input in\nmultiple server features. An attacker could possibly use this issue to\ncause PostgreSQL to crash, resulting in a denial of service, or execute\narbitrary code. (CVE-2026-6473)\n\nIt was discovered that PostgreSQL incorrectly handled format strings in\nthe timeofday() function. An attacker could possibly use this issue to\nobtain sensitive information. (CVE-2026-6474)\n\nIt was discovered that PostgreSQL incorrectly followed symbolic links in\npg_basebackup and pg_rewind. An attacker could possibly use this issue to\noverwrite local files and execute arbitrary code. (CVE-2026-6475)\n\nIt was discovered that PostgreSQL had an SQL injection vulnerability in\npg_createsubscriber. An attacker could possibly use this issue to execute\narbitrary SQL as a superuser. This issue only affected Ubuntu 25.10 and\nUbuntu 26.04 LTS. (CVE-2026-6476)\n\nIt was discovered that PostgreSQL used an unsafe libpq function in large\nobject operations. An attacker could possibly use this issue to overwrite\nclient memory and execute arbitrary code. (CVE-2026-6477)\n\nIt was discovered that PostgreSQL did not compare MD5-hashed passwords in\nconstant time. An attacker could possibly use this issue to obtain\nsensitive information. (CVE-2026-6478)\n\nIt was discovered that PostgreSQL had uncontrolled recursion during SSL and\nGSS negotiation. An attacker could possibly use this issue to cause a\ndenial of service. (CVE-2026-6479)\n\nIt was discovered that PostgreSQL incorrectly handled array length\nmismatches in pg_restore_attribute_stats(). An attacker could possibly use\nthis issue to obtain sensitive information. This issue only affected Ubuntu\n26.04 LTS. (CVE-2026-6575)\n\nIt was discovered that PostgreSQL had a stack buffer overflow in the refint\nmodule. An attacker could use this issue to cause PostgreSQL to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2026-6637)\n\nIt was discovered that PostgreSQL had an SQL injection vulnerability in\nlogical replication REFRESH PUBLICATION. An attacker could possibly use\nthis issue to execute arbitrary SQL. This issue only affected Ubuntu 24.04\nLTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-6638)",
  "id": "USN-8294-1",
  "modified": "2026-06-30T15:55:19Z",
  "published": "2026-05-21T20:39:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8294-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6472"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6473"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6474"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6475"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6476"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6477"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6478"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6479"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6575"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6637"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-6638"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "postgresql-14, postgresql-16, postgresql-17, postgresql-18 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-6472",
    "UBUNTU-CVE-2026-6473",
    "UBUNTU-CVE-2026-6474",
    "UBUNTU-CVE-2026-6475",
    "UBUNTU-CVE-2026-6476",
    "UBUNTU-CVE-2026-6477",
    "UBUNTU-CVE-2026-6478",
    "UBUNTU-CVE-2026-6479",
    "UBUNTU-CVE-2026-6575",
    "UBUNTU-CVE-2026-6637",
    "UBUNTU-CVE-2026-6638"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.