{"id":"USN-8294-1","summary":"postgresql-14, postgresql-16, postgresql-17, postgresql-18 vulnerabilities","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)","modified":"2026-06-30T18:16:23.729027251Z","published":"2026-05-21T20:39:48Z","related":["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"],"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"],"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"}],"affected":[{"package":{"name":"postgresql-14","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/postgresql-14?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"14.23-0ubuntu0.22.04.1"}]}],"versions":["14.1-1ubuntu1","14.2-1","14.2-1ubuntu1","14.3-0ubuntu0.22.04.1","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"],"ecosystem_specific":{"binaries":[{"binary_version":"14.23-0ubuntu0.22.04.1","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"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"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-2026-6472"},{"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-2026-6473"},{"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-2026-6474"},{"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-2026-6475"},{"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-2026-6476"},{"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-2026-6477"},{"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-2026-6478"},{"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-2026-6479"},{"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-2026-6575"},{"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-2026-6637"},{"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"}],"id":"CVE-2026-6638"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8294-1.json"}},{"package":{"name":"postgresql-16","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/postgresql-16?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.14-0ubuntu0.24.04.1"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"16.14-0ubuntu0.24.04.1","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"}],"availability":"No 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required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:25.10","cves":[{"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-2026-6472"},{"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-2026-6473"},{"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-2026-6474"},{"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-2026-6475"},{"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-2026-6476"},{"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-2026-6477"},{"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-2026-6478"},{"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-2026-6479"},{"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-2026-6575"},{"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-2026-6637"},{"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"}],"id":"CVE-2026-6638"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8294-1.json"}},{"package":{"name":"postgresql-18","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/postgresql-18?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.4-0ubuntu0.26.04.1"}]}],"versions":["18.0-1","18.1-1","18.1-1ubuntu1","18.1-1ubuntu2","18.1-2","18.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"18.4-0ubuntu0.26.04.1","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"}],"availability":"No 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