Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS Details
- CVSS 3.1 Base Score: 4.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
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 postgresql15-upgrade-develUpgrade postgresql17-private-develUpgrade postgresql15-contribUpgrade postgresql17-plperlUpgrade postgresql15-contrib-debuginfoUpgrade postgresql18-server-develUpgrade postgresql15-server-debuginfoUpgrade postgresql15-upgrade-debuginfoUpgrade postgresql15-server-devel-debuginfoUpgrade postgresql17-private-libsUpgrade postgresql16-debuginfoUpgrade postgresql18-upgrade-debuginfoUpgrade postgresql17-plpython3Upgrade postgresql18-plpython3-debuginfoUpgrade postgresql15-test-debuginfoUpgrade postgresql17-server-devel-debuginfoUpgrade postgresql17Upgrade postgresql18-staticUpgrade postgresql18Upgrade postgresql18-pltclUpgrade postgresql15-test-rpm-macrosUpgrade postgresql17-private-libs-debuginfoUpgrade postgresql15-llvmjit-debuginfoUpgrade postgresql17-plpython3-debuginfoUpgrade postgresql15-plperl-debuginfoUpgrade postgresql15-pltclUpgrade postgresql15-debuginfoUpgrade postgresql16-docsUpgrade postgresql17-llvmjit-debuginfoUpgrade postgresql17-debuginfoUpgrade postgresql18-upgrade-devel-debuginfoUpgrade postgresql16-testUpgrade postgresql15-plperlUpgrade postgresql15Upgrade postgresql16-server-debuginfoUpgrade postgresql16-upgrade-debuginfoUpgrade postgresql16-test-debuginfoUpgrade postgresql18-llvmjitUpgrade postgresql18-upgradeUpgrade postgresql15-private-develUpgrade postgresql17-upgradeUpgrade postgresql18-contrib-debuginfoUpgrade postgresql17-testUpgrade postgresql17-pltcl-debuginfoUpgrade postgresql18-plpython3Upgrade postgresql15-pltcl-debuginfoUpgrade postgresql16-upgrade-develUpgrade postgresql15-private-libsUpgrade postgresql16-upgrade-devel-debuginfoUpgrade postgresql17-test-rpm-macrosUpgrade postgresql16-pltclUpgrade postgresql17-upgrade-develUpgrade postgresql18-llvmjit-debuginfoUpgrade postgresql15-private-libs-debuginfoUpgrade postgresql17-contribUpgrade postgresql18-contribUpgrade postgresql18-private-libsUpgrade postgresql18-server-debuginfoUpgrade postgresql15-testUpgrade postgresql18-debugsourceUpgrade postgresql16-contrib-debuginfoUpgrade postgresql18-docsUpgrade postgresql16-docs-debuginfoUpgrade postgresql16-upgradeUpgrade postgresql16-private-develUpgrade postgresql17-docsUpgrade postgresql17-server-debuginfoUpgrade postgresql15-debugsourceUpgrade postgresql15-staticUpgrade postgresql17-upgrade-debuginfoUpgrade postgresql15-plpython3-debuginfoUpgrade postgresql18-plperlUpgrade postgresql16Upgrade postgresql17-upgrade-devel-debuginfoUpgrade postgresql18-testUpgrade postgresql17-plperl-debuginfoUpgrade postgresql16-private-libs-debuginfoUpgrade postgresql16-plpython3-debuginfoUpgrade postgresql16-debugsourceUpgrade postgresql18-pltcl-debuginfoUpgrade postgresql18-server-devel-debuginfoUpgrade postgresql18-plperl-debuginfoUpgrade postgresql17-docs-debuginfoUpgrade postgresql17-debugsourceUpgrade postgresql16-llvmjit-debuginfoUpgrade postgresql15-llvmjitUpgrade postgresql17-test-debuginfoUpgrade postgresql18-serverUpgrade postgresql18-private-develUpgrade postgresql17-contrib-debuginfoUpgrade postgresql16-staticUpgrade postgresql16-pltcl-debuginfoUpgrade postgresql16-plpython3Upgrade postgresql18-test-rpm-macrosUpgrade postgresql16-serverUpgrade postgresql15-upgrade-devel-debuginfoUpgrade postgresql16-private-libsUpgrade postgresql18-debuginfoUpgrade postgresql15-upgradeUpgrade postgresql18-upgrade-develUpgrade postgresql18-test-debuginfoUpgrade postgresql17-llvmjitUpgrade postgresql17-serverUpgrade postgresql15-server-develUpgrade postgresql18-private-libs-debuginfoUpgrade postgresql16-plperlUpgrade postgresql16-plperl-debuginfoUpgrade postgresql15-plpython3Upgrade postgresql18-docs-debuginfoUpgrade postgresql17-server-develUpgrade postgresql17-pltclUpgrade postgresql16-test-rpm-macrosUpgrade postgresql15-docsUpgrade postgresql17-staticUpgrade postgresql16-server-devel-debuginfoUpgrade postgresql16-server-develUpgrade postgresql16-contribUpgrade postgresql16-llvmjitUpgrade postgresql15-serverUpgrade postgresql15-docs-debuginfo | Sep 1, 2026 | Aug 13, 2026 |
| Debian | — | Upgrade postgresql-17Upgrade postgresql-15 | Aug 16, 2026 | Aug 16, 2026 |
| Freebsd | — | Upgrade postgresql14-serverUpgrade postgresql18-serverUpgrade postgresql16-serverUpgrade postgresql15-serverUpgrade postgresql17-server | Aug 17, 2026 | Aug 16, 2026 |
| Postgres | — | Upgrade to PostgreSQL version 16.15Upgrade to PostgreSQL version 15.19Upgrade to PostgreSQL version 17.11Upgrade to PostgreSQL version 14.24Upgrade to PostgreSQL version 18.6 | Aug 14, 2026 | Aug 13, 2026 |
| Redhat_linux | — | No solution exists | Sep 3, 2026 | Aug 13, 2026 |
| Ubuntu | — | Upgrade postgresql-16Upgrade postgresql-18Upgrade postgresql-14 | Aug 20, 2026 | Aug 13, 2026 |
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