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PostgreSQL pg_trgm picksplit reads past end of buffer

PostgreSQL · CVE-2026-14678
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
4.3
EPSS
0.2%
First seen
7 d ago
Status
corroborated

All PostgreSQL vulnerabilities