Heap buffer overflow in PostgreSQL regexp allows the query author to execute arbitrary code as the operating system user running the database, via text that would not pass encoding validation. This shares heritage with CVE-2026-2006, but this case involved unanticipated data growth when round-tripped through pg_wchar. 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 |
|---|---|---|---|---|
| Alma_linux | — | Upgrade postgresql-serverUpgrade postgresql-test-rpm-macrosUpgrade postgresql-contribUpgrade postgresql-docsUpgrade postgresql-plperlUpgrade postgis-clientUpgrade postgresql-pltclUpgrade pgvectorUpgrade pgauditUpgrade postgresql-private-develUpgrade postgresql-staticUpgrade postgresqlUpgrade pg_repackUpgrade postgres-decoderbufsUpgrade postgis-upgradeUpgrade postgresql-upgrade-develUpgrade postgresql-testUpgrade postgresql-server-develUpgrade postgresql-upgradeUpgrade postgis-utilsUpgrade postgresql-private-libsUpgrade postgis-docsUpgrade postgisUpgrade postgresql-plpython3 | Oct 11, 2026 | Sep 15, 2026 |
| Alpine Linux | — | Upgrade postgresql16Upgrade postgresql17Upgrade postgresql18Upgrade postgresql15 | Aug 17, 2026 | Aug 13, 2026 |
| Amazon_linux_2023 | — | Upgrade postgresql17-plperlUpgrade postgresql15-test-rpm-macrosUpgrade postgresql17-llvmjitUpgrade postgresql15Upgrade postgresql17-test-rpm-macrosUpgrade postgresql15-private-libsUpgrade postgresql18-plpython3Upgrade postgresql15-llvmjit-debuginfoUpgrade postgresql18-upgrade-develUpgrade postgresql15-test-debuginfoUpgrade postgresql16-testUpgrade postgresql15-upgrade-debuginfoUpgrade postgresql17-contrib-debuginfoUpgrade postgresql15-server-devel-debuginfoUpgrade postgresql17-llvmjit-debuginfoUpgrade postgresql18-plperl-debuginfoUpgrade postgresql18-staticUpgrade postgresql15-pltcl-debuginfoUpgrade postgresql17-plpython3-debuginfoUpgrade postgresql18-test-rpm-macrosUpgrade postgresql18-upgradeUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql15-contrib-debuginfoUpgrade postgresql17-plpython3Upgrade postgresql18-contribUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql18Upgrade postgresql17-server-develUpgrade postgresql16-pltclUpgrade postgresql17-docsUpgrade postgresql18-upgrade-debuginfoUpgrade postgresql16-docs-debuginfoUpgrade postgresql16-upgrade-develUpgrade postgresql17-debugsourceUpgrade postgresql15-server-debuginfoUpgrade postgresql17-upgradeUpgrade postgresql18-docsUpgrade postgresql17-server-debuginfoUpgrade postgresql15-upgradeUpgrade postgresql16-private-develUpgrade postgresql16-docsUpgrade postgresql16-pltcl-debuginfoUpgrade postgresql18-plperlUpgrade postgresql16-server-devel-debuginfoUpgrade postgresql15-server-develUpgrade postgresql16-plpython3-debuginfoUpgrade postgresql16-llvmjitUpgrade postgresql18-llvmjitUpgrade postgresql15-plpython3-debuginfoUpgrade postgresql16-plperl-debuginfoUpgrade postgresql17-private-libsUpgrade postgresql18-contrib-debuginfoUpgrade postgresql17-plperl-debuginfoUpgrade postgresql17-pltcl-debuginfoUpgrade postgresql17-pltclUpgrade postgresql18-private-develUpgrade postgresql18-server-debuginfoUpgrade postgresql18-testUpgrade postgresql16-server-debuginfoUpgrade postgresql16-private-libsUpgrade postgresql18-test-debuginfoUpgrade postgresql15-testUpgrade postgresql16-debuginfoUpgrade postgresql16-test-debuginfoUpgrade postgresql17-upgrade-develUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql15-private-develUpgrade postgresql15-plperl-debuginfoUpgrade postgresql16-plperlUpgrade postgresql16-contrib-debuginfoUpgrade postgresql17-private-develUpgrade postgresql16-plpython3Upgrade postgresql17-debuginfoUpgrade postgresql15-contribUpgrade postgresql17-staticUpgrade postgresql17-private-libs-debuginfoUpgrade postgresql17-upgrade-debuginfoUpgrade postgresql17-test-debuginfoUpgrade postgresql15-private-libs-debuginfoUpgrade postgresql15-docs-debuginfoUpgrade postgresql15-staticUpgrade postgresql18-llvmjit-debuginfoUpgrade postgresql16-private-libs-debuginfoUpgrade postgresql18-server-develUpgrade postgresql17Upgrade postgresql16-test-rpm-macrosUpgrade postgresql18-debugsourceUpgrade postgresql16-llvmjit-debuginfoUpgrade postgresql15-plpython3Upgrade postgresql17-upgrade-devel-debuginfoUpgrade postgresql17-docs-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql15-pltclUpgrade postgresql15-debuginfoUpgrade postgresql16-serverUpgrade postgresql18-serverUpgrade postgresql16-staticUpgrade postgresql15-upgrade-develUpgrade postgresql17-contribUpgrade postgresql15-docsUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql17-testUpgrade postgresql15-upgrade-devel-debuginfoUpgrade postgresql16-server-develUpgrade postgresql15-serverUpgrade postgresql16-upgrade-devel-debuginfoUpgrade postgresql18-pltclUpgrade postgresql15-debugsourceUpgrade postgresql18-private-libsUpgrade postgresql16-upgrade-debuginfoUpgrade postgresql16-upgradeUpgrade postgresql16Upgrade postgresql15-plperlUpgrade postgresql17-server-devel-debuginfoUpgrade postgresql17-serverUpgrade postgresql18-debuginfoUpgrade postgresql16-debugsourceUpgrade postgresql16-contribUpgrade postgresql15-llvmjitUpgrade postgresql18-docs-debuginfo | Sep 1, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade postgresql-15Upgrade postgresql-17 | Aug 16, 2026 | Aug 16, 2026 |
| Freebsd | — | Upgrade postgresql14-serverUpgrade postgresql15-serverUpgrade postgresql17-serverUpgrade postgresql16-serverUpgrade postgresql18-server | Aug 17, 2026 | Aug 16, 2026 |
| Postgres | — | Upgrade to PostgreSQL version 17.11Upgrade to PostgreSQL version 14.24Upgrade to PostgreSQL version 18.6Upgrade to PostgreSQL version 15.19Upgrade to PostgreSQL version 16.15 | Aug 14, 2026 | Aug 13, 2026 |
| Redhat_linux | — | Upgrade postgresql16-debugsourceUpgrade postgresql-plpython3Upgrade postgis-upgrade-debuginfoUpgrade postgresql18-debuginfoUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql-plpython3-debuginfoUpgrade postgresql-docs-debuginfoUpgrade pgvector-debugsourceUpgrade postgresql-plperl-debuginfoUpgrade postgresql18-testUpgrade postgresql18-private-develUpgrade postgresql18-test-debuginfoUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgresql18-docs-debuginfoUpgrade postgresql18-serverUpgrade postgresql18-plperl-debuginfoUpgrade postgresql-private-libs-debuginfoUpgrade postgresql18-server-develUpgrade postgisUpgrade postgresql-contrib-debuginfoUpgrade postgresql-pltclUpgrade postgresql18-test-rpm-macrosUpgrade postgresql18-upgrade-develUpgrade postgis-debuginfoUpgrade postgis-upgradeUpgrade postgresql-upgradeUpgrade postgresql-server-devel-debuginfoUpgrade postgresql18-plperlUpgrade pg_repack-debugsourceUpgrade postgresql-upgrade-develUpgrade postgresql-test-debuginfoUpgrade postgresql18-server-devel-debuginfoUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql-contribUpgrade postgresql-upgrade-debuginfoUpgrade postgresql-serverUpgrade postgis-debugsourceUpgrade postgresql18Upgrade postgresql-staticUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql-server-debuginfoUpgrade pg_repack-debuginfoUpgrade postgresql-pltcl-debuginfoUpgrade postgresql18-staticUpgrade postgresql18-server-debuginfoUpgrade pgaudit-debuginfoUpgrade postgresql18-contribUpgrade postgresql-test-rpm-macrosUpgrade postgresql18-contrib-debuginfoUpgrade pgvectorUpgrade postgresql-private-develUpgrade pgauditUpgrade postgresql-testUpgrade postgis-docsUpgrade postgresql-debuginfoUpgrade postgres-decoderbufsUpgrade postgres-decoderbufs-debuginfoUpgrade postgresql18-docsUpgrade postgresql-docsUpgrade pg_repackUpgrade pgvector-debuginfoUpgrade postgis-client-debuginfoUpgrade postgresql18-plpython3Upgrade postgresqlUpgrade postgresql18-debugsourceUpgrade postgresql-debugsourceUpgrade postgresql-private-libsUpgrade postgresql-plperlUpgrade postgis-clientUpgrade postgresql18-upgradeUpgrade postgis-utilsUpgrade postgresql16-debuginfoUpgrade pgaudit-debugsourceUpgrade postgresql18-upgrade-debuginfoUpgrade postgresql-server-develUpgrade postgresql18-private-libs | Aug 28, 2026 | Aug 13, 2026 |
| Rocky_linux | — | Upgrade postgresql-server-debuginfoUpgrade pgvector-debuginfoUpgrade postgresql-pltcl-debuginfoUpgrade pgaudit-debuginfoUpgrade postgresql-staticUpgrade postgis-utilsUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgis-clientUpgrade postgis-client-debuginfoUpgrade pg_repackUpgrade postgres-decoderbufs-debuginfoUpgrade postgresql-server-develUpgrade pgauditUpgrade postgis-debugsourceUpgrade postgresql-debuginfoUpgrade postgresql-contribUpgrade postgresql-docsUpgrade postgresql-private-develUpgrade postgresql-server-devel-debuginfoUpgrade postgresql-private-libsUpgrade postgis-debuginfoUpgrade postgres-decoderbufsUpgrade postgresqlUpgrade pg_repack-debugsourceUpgrade postgis-docsUpgrade postgis-upgrade-debuginfoUpgrade postgresql-private-libs-debuginfoUpgrade postgresql-upgrade-develUpgrade postgresql-upgrade-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgisUpgrade pgvector-debugsourceUpgrade pgaudit-debugsourceUpgrade postgresql-plpython3-debuginfoUpgrade postgresql-plperlUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql-plpython3Upgrade pg_repack-debuginfoUpgrade postgresql-pltclUpgrade postgis-upgradeUpgrade postgresql-testUpgrade postgresql-debugsourceUpgrade pgvectorUpgrade postgresql-test-debuginfoUpgrade postgresql-serverUpgrade postgresql-upgradeUpgrade postgresql-docs-debuginfoUpgrade postgresql-contrib-debuginfo | Sep 17, 2026 | Sep 15, 2026 |
| Ubuntu | — | Upgrade postgresql-14Upgrade postgresql-18Upgrade postgresql-16 | Aug 20, 2026 | Aug 13, 2026 |
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