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 |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade postgresql17Upgrade postgresql16Upgrade postgresql15Upgrade postgresql18 | Aug 17, 2026 | Aug 13, 2026 |
| Amazon_linux_2023 | — | Upgrade postgresql18-docs-debuginfoUpgrade postgresql17-private-develUpgrade postgresql17-serverUpgrade postgresql15-plperl-debuginfoUpgrade postgresql17-server-devel-debuginfoUpgrade postgresql16-debugsourceUpgrade postgresql18-debuginfoUpgrade postgresql15-debuginfoUpgrade postgresql16-server-develUpgrade postgresql15-serverUpgrade postgresql15-upgrade-devel-debuginfoUpgrade postgresql16-plpython3Upgrade postgresql17-docs-debuginfoUpgrade postgresql17-testUpgrade postgresql15-docsUpgrade postgresql16-contribUpgrade postgresql17-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql17-upgrade-devel-debuginfoUpgrade postgresql15-llvmjitUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql16-upgradeUpgrade postgresql15-staticUpgrade postgresql16-private-libs-debuginfoUpgrade postgresql17-test-debuginfoUpgrade postgresql18-llvmjit-debuginfoUpgrade postgresql15-private-libs-debuginfoUpgrade postgresql17-private-libs-debuginfoUpgrade postgresql17-staticUpgrade postgresql18-server-develUpgrade postgresql17Upgrade postgresql15-pltclUpgrade postgresql16-test-rpm-macrosUpgrade postgresql15-contribUpgrade postgresql17-upgrade-debuginfoUpgrade postgresql18-debugsourceUpgrade postgresql15-docs-debuginfoUpgrade postgresql15-plpython3Upgrade postgresql16-plperlUpgrade postgresql16-contrib-debuginfoUpgrade postgresql17-contribUpgrade postgresql15-plperlUpgrade postgresql16Upgrade postgresql16-upgrade-devel-debuginfoUpgrade postgresql16-upgrade-debuginfoUpgrade postgresql15-debugsourceUpgrade postgresql18-pltclUpgrade postgresql16-staticUpgrade postgresql18-serverUpgrade postgresql15-upgrade-develUpgrade postgresql18-private-libsUpgrade postgresql16-serverUpgrade postgresql16-llvmjit-debuginfoUpgrade postgresql15Upgrade postgresql17-plperlUpgrade postgresql17-private-libsUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql18-upgrade-develUpgrade postgresql15-test-debuginfoUpgrade postgresql17-llvmjitUpgrade postgresql17-pltcl-debuginfoUpgrade postgresql17-pltclUpgrade postgresql17-test-rpm-macrosUpgrade postgresql16-testUpgrade postgresql17-plperl-debuginfoUpgrade postgresql15-test-rpm-macrosUpgrade postgresql18-private-develUpgrade postgresql16-debuginfoUpgrade postgresql18-testUpgrade postgresql18-plpython3Upgrade postgresql16-llvmjitUpgrade postgresql15-server-develUpgrade postgresql15-llvmjit-debuginfoUpgrade postgresql15-contrib-debuginfoUpgrade postgresql17-plpython3Upgrade postgresql16-pltcl-debuginfoUpgrade postgresql16-pltclUpgrade postgresql15-server-debuginfoUpgrade postgresql18-upgrade-debuginfoUpgrade postgresql18-upgradeUpgrade postgresql18-test-rpm-macrosUpgrade postgresql18-server-debuginfoUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql18-contribUpgrade postgresql16-upgrade-develUpgrade postgresql16-private-develUpgrade postgresql17-server-develUpgrade postgresql17-server-debuginfoUpgrade postgresql17-docsUpgrade postgresql17-debugsourceUpgrade postgresql16-docs-debuginfoUpgrade postgresql16-docsUpgrade postgresql15-upgradeUpgrade postgresql18-docsUpgrade postgresql17-upgradeUpgrade postgresql17-llvmjit-debuginfoUpgrade postgresql18-staticUpgrade postgresql18-plperl-debuginfoUpgrade postgresql18-plperlUpgrade postgresql18-contrib-debuginfoUpgrade postgresql18Upgrade postgresql17-plpython3-debuginfoUpgrade postgresql17-contrib-debuginfoUpgrade postgresql15-upgrade-debuginfoUpgrade postgresql15-server-devel-debuginfoUpgrade postgresql15-private-libsUpgrade postgresql15-pltcl-debuginfoUpgrade postgresql18-llvmjitUpgrade postgresql15-plpython3-debuginfoUpgrade postgresql16-private-libsUpgrade postgresql17-upgrade-develUpgrade postgresql16-server-debuginfoUpgrade postgresql15-testUpgrade postgresql15-private-develUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql16-test-debuginfoUpgrade postgresql16-server-devel-debuginfoUpgrade postgresql16-plpython3-debuginfoUpgrade postgresql16-plperl-debuginfoUpgrade postgresql18-test-debuginfo | Sep 1, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade postgresql-17Upgrade postgresql-15 | Aug 16, 2026 | Aug 16, 2026 |
| Freebsd | — | Upgrade postgresql18-serverUpgrade postgresql16-serverUpgrade postgresql17-serverUpgrade postgresql14-serverUpgrade postgresql15-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 16.15Upgrade to PostgreSQL version 15.19 | Aug 14, 2026 | Aug 13, 2026 |
| Redhat_linux | — | Upgrade postgresql-test-debuginfoUpgrade postgresql-upgrade-develUpgrade postgresql-contribUpgrade postgresql18-server-develUpgrade postgresql18-plperlUpgrade postgresql18-plperl-debuginfoUpgrade postgis-debuginfoUpgrade pg_repack-debugsourceUpgrade postgresql-contrib-debuginfoUpgrade postgisUpgrade postgis-upgradeUpgrade postgresql-private-libs-debuginfoUpgrade postgresql-pltclUpgrade postgresql18-docs-debuginfoUpgrade postgresql-upgradeUpgrade postgresql18-serverUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql16-debugsourceUpgrade postgresql18-test-debuginfoUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql18-private-develUpgrade pgvector-debugsourceUpgrade postgresql18-test-rpm-macrosUpgrade postgres-decoderbufs-debugsourceUpgrade postgis-upgrade-debuginfoUpgrade postgresql-plpython3Upgrade postgresql-docs-debuginfoUpgrade postgresql18-upgrade-develUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql18-debuginfoUpgrade postgresql-plpython3-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgresql-server-devel-debuginfoUpgrade postgresql18-testUpgrade pg_repackUpgrade pgvector-debuginfoUpgrade postgresql-testUpgrade postgres-decoderbufs-debuginfoUpgrade postgres-decoderbufsUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql-upgrade-debuginfoUpgrade postgresql-pltcl-debuginfoUpgrade postgresql-staticUpgrade postgresql18-private-libsUpgrade postgresql-private-libsUpgrade postgresql18-plpython3Upgrade postgresql-server-develUpgrade postgis-utilsUpgrade postgresql18-upgrade-debuginfoUpgrade postgresqlUpgrade postgis-debugsourceUpgrade postgis-clientUpgrade postgresql-plperlUpgrade postgresql-debugsourceUpgrade postgresql-docsUpgrade postgresql18-staticUpgrade postgresql18-upgradeUpgrade postgis-client-debuginfoUpgrade pg_repack-debuginfoUpgrade postgresql18-debugsourceUpgrade postgresql-server-debuginfoUpgrade postgresql-debuginfoUpgrade postgresql-serverUpgrade postgresql18-server-debuginfoUpgrade postgresql-private-develUpgrade postgis-docsUpgrade pgauditUpgrade postgresql18Upgrade postgresql16-debuginfoUpgrade pgaudit-debugsourceUpgrade pgvectorUpgrade postgresql-test-rpm-macrosUpgrade pgaudit-debuginfoUpgrade postgresql18-contrib-debuginfoUpgrade postgresql18-contribUpgrade postgresql18-docs | Aug 28, 2026 | Aug 13, 2026 |
| Rocky_linux | — | Upgrade postgresql18-plperlUpgrade pgaudit-debuginfoUpgrade postgresql18-server-debuginfoUpgrade postgresql-pltcl-debuginfoUpgrade pgvector-debuginfoUpgrade postgresql-server-debuginfoUpgrade postgresql18-serverUpgrade postgresql-staticUpgrade postgresql18-private-libsUpgrade postgresql-server-devel-debuginfoUpgrade postgresql-server-develUpgrade postgis-clientUpgrade postgresql-upgrade-devel-debuginfoUpgrade postgresql18-contribUpgrade postgis-client-debuginfoUpgrade postgresql-private-libsUpgrade postgis-debuginfoUpgrade postgres-decoderbufs-debuginfoUpgrade postgresql-debuginfoUpgrade postgis-upgrade-debuginfoUpgrade postgresql-private-libs-debuginfoUpgrade postgresql18-upgradeUpgrade pg_repack-debugsourceUpgrade postgresql18-docs-debuginfoUpgrade pgauditUpgrade postgis-debugsourceUpgrade postgresql-docsUpgrade postgresql18-plpython3Upgrade postgresql18-upgrade-debuginfoUpgrade postgresqlUpgrade postgis-utilsUpgrade postgresql18-debugsourceUpgrade postgres-decoderbufsUpgrade postgresql-contribUpgrade postgresql18-plpython3-debuginfoUpgrade postgresql18-contrib-debuginfoUpgrade postgresql-upgrade-develUpgrade postgresql18-docsUpgrade postgresql18-staticUpgrade pg_repackUpgrade postgresql-private-develUpgrade postgis-docsUpgrade postgresql18Upgrade postgresql-docs-debuginfoUpgrade postgresql-upgrade-debuginfoUpgrade postgresql-upgradeUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql-contrib-debuginfoUpgrade pgvector-debugsourceUpgrade pgaudit-debugsourceUpgrade postgresql-serverUpgrade postgisUpgrade postgres-decoderbufs-debugsourceUpgrade postgresql18-testUpgrade postgresql18-plperl-debuginfoUpgrade postgresql-plperl-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade pgvectorUpgrade postgresql-test-debuginfoUpgrade postgresql18-debuginfoUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-test-debuginfoUpgrade postgresql-plperlUpgrade postgis-upgradeUpgrade postgresql18-upgrade-develUpgrade postgresql-testUpgrade postgresql-debugsourceUpgrade postgresql18-server-develUpgrade pg_repack-debuginfoUpgrade postgresql18-private-develUpgrade postgresql-pltclUpgrade postgresql-plpython3Upgrade postgresql-plpython3-debuginfo | Sep 17, 2026 | Sep 15, 2026 |
| Ubuntu | — | Upgrade postgresql-18Upgrade postgresql-16Upgrade postgresql-14 | Aug 20, 2026 | Aug 13, 2026 |
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