Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade postgresql17Upgrade postgresql18Upgrade postgresql15Upgrade postgresql16 | Aug 17, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade postgresql-15Upgrade postgresql-17 | Aug 16, 2026 | Aug 16, 2026 |
| Freebsd | — | Upgrade postgresql18-serverUpgrade postgresql15-serverUpgrade postgresql17-serverUpgrade postgresql16-serverUpgrade postgresql14-server | Aug 17, 2026 | Aug 16, 2026 |
| Postgres | — | Upgrade to PostgreSQL version 18.6Upgrade to PostgreSQL version 16.15Upgrade to PostgreSQL version 14.24Upgrade to PostgreSQL version 17.11Upgrade to PostgreSQL version 15.19 | Aug 14, 2026 | Aug 13, 2026 |
| Redhat_linux | — | Upgrade postgresql-upgrade-devel-debuginfoUpgrade pgauditUpgrade postgresql-debuginfoUpgrade postgresql-docsUpgrade postgresql18-upgrade-develUpgrade postgresql18-contrib-debuginfoUpgrade postgresql-upgradeUpgrade postgresql18-server-debuginfoUpgrade postgresql-staticUpgrade pgvector-debugsourceUpgrade postgresql18Upgrade postgresql-pltcl-debuginfoUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql18-private-libsNo solution existsUpgrade postgresql18-plperlUpgrade postgisUpgrade postgres-decoderbufs-debuginfoUpgrade pgvector-debuginfoUpgrade postgresql18-docsUpgrade postgresql-upgrade-develUpgrade postgresql-private-develUpgrade pg_repack-debugsourceUpgrade postgresql-debugsourceUpgrade postgres-decoderbufsUpgrade postgresql-contribUpgrade postgresql18-serverUpgrade postgresql-private-libs-debuginfoUpgrade postgresql18-plperl-debuginfoUpgrade postgis-debuginfoUpgrade postgis-docsUpgrade postgresql-contrib-debuginfoUpgrade postgresql18-upgradeUpgrade postgis-debugsourceUpgrade postgresql-server-devel-debuginfoUpgrade postgis-clientUpgrade postgresql18-test-debuginfoUpgrade postgresql-test-debuginfoUpgrade postgresql-docs-debuginfoUpgrade postgresql-serverUpgrade pg_repack-debuginfoUpgrade postgresql18-test-rpm-macrosUpgrade postgresql-pltclUpgrade postgis-upgrade-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql-server-develUpgrade postgresql18-server-develUpgrade postgis-utilsUpgrade postgresql18-plpython3Upgrade postgresql-test-rpm-macrosUpgrade pg_repackUpgrade postgresql18-docs-debuginfoUpgrade postgresql18-staticUpgrade postgresql18-debuginfoUpgrade postgis-client-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresqlUpgrade postgresql-server-debuginfoUpgrade postgresql16-debuginfoUpgrade postgresql18-private-develUpgrade postgresql16-debugsourceUpgrade postgresql-private-libsUpgrade postgresql-plpython3-debuginfoUpgrade postgresql18-contribUpgrade postgis-upgradeUpgrade postgresql18-debugsourceUpgrade postgresql-testUpgrade postgresql-plperlUpgrade pgaudit-debugsourceUpgrade postgresql18-testUpgrade postgresql-plpython3Upgrade postgresql18-pltcl-debuginfoUpgrade pgvectorUpgrade pgaudit-debuginfoUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql-upgrade-debuginfoUpgrade postgresql18-upgrade-debuginfo | Aug 31, 2026 | Aug 13, 2026 |
| Rocky_linux | — | Upgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgresql-pltclUpgrade postgis-upgrade-debuginfoUpgrade pgaudit-debugsourceUpgrade postgresql18-debugsourceUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-server-develUpgrade postgresql-debuginfoUpgrade pgvectorUpgrade postgis-debugsourceUpgrade postgis-debuginfoUpgrade postgis-client-debuginfoUpgrade postgresql-contribUpgrade postgres-decoderbufsUpgrade postgresql-docs-debuginfoUpgrade postgresql18-debuginfoUpgrade postgresql18-contrib-debuginfoUpgrade postgresql18-plperl-debuginfoUpgrade postgresql18-private-libsUpgrade pgvector-debuginfoUpgrade postgis-utilsUpgrade postgres-decoderbufs-debuginfoUpgrade postgresql-contrib-debuginfoUpgrade postgresql-private-develUpgrade pgvector-debugsourceUpgrade postgresql-upgrade-develUpgrade postgresql18-docs-debuginfoUpgrade postgresql-private-libs-debuginfoUpgrade postgresql18-upgradeUpgrade postgresql-docsUpgrade postgresql-server-devel-debuginfoUpgrade pgauditUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgresql18-serverUpgrade postgresql18-upgrade-debuginfoUpgrade postgresql18-private-develUpgrade postgresql18-upgrade-develUpgrade postgresql-upgradeUpgrade postgresql-serverUpgrade postgresql18-test-debuginfoUpgrade postgresql18-staticUpgrade postgres-decoderbufs-debugsourceUpgrade pg_repack-debuginfoUpgrade pg_repackUpgrade postgresql-staticUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql-private-libsUpgrade postgis-upgradeUpgrade postgis-clientUpgrade postgresql18-testUpgrade postgresql18-server-debuginfoUpgrade postgresql18-plperlUpgrade postgresql18Upgrade postgresql-server-develUpgrade postgresql-plpython3Upgrade postgresql-plperlUpgrade postgresql-test-debuginfoUpgrade postgis-docsUpgrade postgresql-debugsourceUpgrade postgisUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql-pltcl-debuginfoUpgrade postgresql-server-debuginfoUpgrade postgresql-plpython3-debuginfoUpgrade postgresql-upgrade-debuginfoUpgrade postgresql18-contribUpgrade postgresql-testUpgrade pgaudit-debuginfoUpgrade pg_repack-debugsourceUpgrade postgresql18-docsUpgrade postgresqlUpgrade postgresql18-plpython3 | Sep 17, 2026 | Sep 15, 2026 |
| Ubuntu | — | Upgrade postgresql-14Upgrade postgresql-16Upgrade postgresql-18 | Aug 20, 2026 | Aug 13, 2026 |
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