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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-14662

PostgreSQL tsvector and tsquery undersize allocations, via integer wraparound

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Status
Published
Published
Updated
Assigning organization
PostgreSQL

Description

Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary code as the operating system user running the database. These types are typically sourced from application logic, not taken from the application's user. Hence, application users attacking the database, through the application as a conduit, are unlikely. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a PostgreSQL

Default version status: unaffected

  • 18 to < 18.6affected
  • 17 to < 17.11affected
  • 16 to < 16.15affected
  • 15 to < 15.19affected
  • 0 to < 14.24affected

References