Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. (CVE-2026-14678)
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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer. (CVE-2026-14678)
Description
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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS v3.1
Score 4.3medium
Weaknesses
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-rw5c-m5ff-2772
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-14678"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a7e0366bf8831d5398f868d
Added to database: 08/13/2026, 17:48:22 UTC
Last updated: 08/13/2026, 17:48:22 UTC
Views: 1
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