CVE-2026-14678 — PostgreSQL pg_trgm picksplit reads past end of buffer

CVE-2026-14678

PostgreSQL pg_trgm picksplit reads past end of buffer PUBLISHED

Description (CNA)

Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected (CNA)

Vendor / product	Versions
n/a / PostgreSQL	affected 18 before 18.6; affected 17 before 17.11; affected 16 before 16.15; affected 15 before 15.19; affected 0 before 14.24

CWE

CWE-126

References

https://www.postgresql.org/support/security/CVE-2026-14678/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.