PostgreSQL's development team has released patched versions 14.24, 15.19, 16.15, 17.11 and 18.6, closing a total of 28 security vulnerabilities across the database system. Most of the flaws let attackers who successfully exploit them run arbitrary code and take full control of affected instances.
Two vulnerabilities are rated high severity. CVE-2026-14662 involves a memory handling error linked to the tsvector and tsquery data types, causing an out-of-bounds write that lets attackers write data outside the reserved memory area. CVE-2026-18408 allows code execution during a database restore operation.
The maintainers report no evidence yet that either flaw is being actively exploited. Separately, they warn that support for PostgreSQL 14 will end on November 12, 2026. After that date the branch will no longer receive security updates, so administrators still running it need to plan an upgrade to a supported version before the deadline.
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