PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory
At a glance
Severity
HIGH 8.2
EPSS
EPSS 0.55 % · percentile 46 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
PostgreSQL
NVD status
Modified
Description
Heap buffer overflow in PostgreSQL pg_trgm allows a database user to achieve unknown impacts via a crafted input string. The attacker has limited control over the byte patterns to be written, but we have not ruled out the viability of attacks that lead to privilege escalation. PostgreSQL 18.1 and 18.0 are affected.
