CVE-2026-14678

4.3 mediumEPSS 0.3%

Medium (4.3) in postgresql postgresql. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-126
Published: 2026-08-13
Modified: 2026-08-29
Record from: the NVD, synced 2026-10-19

Affected

postgresql:postgresql

References

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

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