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 postgresql16Upgrade postgresql18Upgrade postgresql15Upgrade postgresql17 | Aug 17, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade postgresql-17Upgrade postgresql-15 | Aug 16, 2026 | Aug 16, 2026 |
| Freebsd | — | Upgrade postgresql18-serverUpgrade postgresql16-serverUpgrade postgresql14-serverUpgrade postgresql15-serverUpgrade postgresql17-server | Aug 17, 2026 | Aug 16, 2026 |
| Postgres | — | Upgrade to PostgreSQL version 14.24Upgrade to PostgreSQL version 15.19Upgrade to PostgreSQL version 17.11Upgrade to PostgreSQL version 16.15Upgrade to PostgreSQL version 18.6 | Aug 14, 2026 | Aug 13, 2026 |
| Redhat_linux | — | Upgrade postgresql18-plperl-debuginfoUpgrade postgis-debugsourceUpgrade postgis-docsUpgrade postgresql-staticUpgrade postgres-decoderbufsUpgrade postgis-clientUpgrade postgresql-docsUpgrade postgresql-contrib-debuginfoUpgrade postgresql18-docsUpgrade postgisUpgrade postgresql18-server-debuginfoUpgrade postgres-decoderbufs-debuginfoUpgrade pgauditUpgrade postgresql-upgrade-develUpgrade postgresql-contribUpgrade postgresql-debugsourceUpgrade postgresql18Upgrade postgresql18-server-devel-debuginfoUpgrade postgresql-upgradeUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql18-upgrade-develUpgrade postgresql18-plperlUpgrade postgresql-pltcl-debuginfoUpgrade pg_repack-debugsourceUpgrade postgresql18-private-libsUpgrade pgvector-debuginfoUpgrade postgresql-private-develUpgrade postgresql18-contrib-debuginfoUpgrade postgresql18-serverUpgrade postgis-debuginfoUpgrade postgresql18-upgradeUpgrade postgresql-debuginfoUpgrade postgresql-server-devel-debuginfoUpgrade postgresql-private-libs-debuginfoNo solution existsUpgrade pgvector-debugsourceUpgrade postgresql-docs-debuginfoUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql-test-rpm-macrosUpgrade pgaudit-debuginfoUpgrade postgresql18-contribUpgrade postgresql-upgrade-debuginfoUpgrade postgresqlUpgrade postgis-client-debuginfoUpgrade postgresql-server-debuginfoUpgrade postgis-utilsUpgrade postgresql18-staticUpgrade postgresql-private-libsUpgrade postgis-upgradeUpgrade pg_repack-debuginfoUpgrade postgresql18-test-rpm-macrosUpgrade postgresql18-test-debuginfoUpgrade postgresql-test-debuginfoUpgrade postgresql-pltclUpgrade postgis-upgrade-debuginfoUpgrade postgresql18-upgrade-debuginfoUpgrade pgvectorUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql18-server-develUpgrade postgresql18-docs-debuginfoUpgrade pg_repackUpgrade postgresql-server-develUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql-plperl-debuginfoUpgrade postgresql18-plpython3Upgrade postgresql-plpython3-debuginfoUpgrade postgresql18-debugsourceUpgrade postgresql-testUpgrade postgresql-plpython3Upgrade postgresql-plperlUpgrade pgaudit-debugsourceUpgrade postgresql18-testUpgrade postgresql18-debuginfoUpgrade postgresql-serverUpgrade postgresql18-private-develUpgrade postgresql18-plpython3-debuginfo | Aug 31, 2026 | Aug 13, 2026 |
| Rocky_linux | — | Upgrade postgresql18-contribUpgrade postgresql18-server-debuginfoUpgrade postgresql-upgrade-debuginfoUpgrade postgresql18-plperlUpgrade pg_repack-debuginfoUpgrade postgresql-testUpgrade postgresql-server-develUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql18-test-debuginfoUpgrade pg_repackUpgrade postgresql18-staticUpgrade postgresql18Upgrade postgresql18-testUpgrade postgresql18-private-libs-debuginfoUpgrade postgisUpgrade postgresql18-private-develUpgrade postgis-docsUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql-plpython3-debuginfoUpgrade postgresql-server-debuginfoUpgrade postgresql-debugsourceUpgrade postgresql-staticUpgrade postgis-upgradeUpgrade postgresql-test-debuginfoUpgrade postgresql-upgradeUpgrade postgresql18-plpython3Upgrade postgresql18-upgrade-debuginfoUpgrade postgresql18-upgrade-develUpgrade pg_repack-debugsourceUpgrade pgaudit-debuginfoUpgrade postgresql-plperlUpgrade postgresql-plpython3Upgrade postgis-clientUpgrade postgresql18-docsUpgrade postgresql-pltcl-debuginfoUpgrade postgresql-serverUpgrade postgresql-private-libsUpgrade postgresqlUpgrade postgresql-docs-debuginfoUpgrade postgresql-private-libs-debuginfoUpgrade postgresql18-debuginfoUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgis-debuginfoUpgrade postgis-client-debuginfoUpgrade postgres-decoderbufsUpgrade postgresql18-upgradeUpgrade postgis-debugsourceUpgrade pgvector-debugsourceUpgrade postgresql-contrib-debuginfoUpgrade postgresql-upgrade-develUpgrade pgauditUpgrade postgresql18-serverUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-debugsourceUpgrade pgaudit-debugsourceUpgrade postgresql18-server-develUpgrade postgresql18-docs-debuginfoUpgrade postgresql18-contrib-debuginfoUpgrade pgvector-debuginfoUpgrade postgresql18-private-libsUpgrade postgresql18-plperl-debuginfoUpgrade postgresql-private-develUpgrade postgres-decoderbufs-debuginfoUpgrade postgis-utilsUpgrade pgvectorUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgresql-pltclUpgrade postgresql-debuginfoUpgrade postgis-upgrade-debuginfoUpgrade postgresql-server-devel-debuginfoUpgrade postgresql-docsUpgrade postgresql-contrib | Sep 17, 2026 | Sep 15, 2026 |
| Ubuntu | — | Upgrade postgresql-14Upgrade postgresql-18Upgrade postgresql-16 | Aug 20, 2026 | Aug 13, 2026 |
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