CVE-2026-14673
LowCVSS 3.8Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16, 15, and 14, minor versions before PostgreSQL 18.5, 16.15, 15.19, and 14.24 are affected. PostgreSQL 17 is unaffected.
Risk Assessment
The risk is privilege escalation, where a privileged user can execute arbitrary functions in the context of the index owner, potentially leading to unauthorized actions or security compromise.
Recommendation
It is recommended to upgrade PostgreSQL to version 18.5, 16.15, 15.19, or 14.24 (or later) depending on the major version in use. If you are using PostgreSQL 17, no upgrade is required.
Original NVD description (English source)
Untrusted search path in PostgreSQL amcheck allows a grantee of amcheck function EXECUTE privilege to execute arbitrary functions as the owners of expression indexes that depend on the search path, via setting a hostile search path before calling the amcheck function. Within major versions 18, 16, 15, and 14, minor versions before PostgreSQL 18.5, 16.15, 15.19, and 14.24 are affected. PostgreSQL 17 is unaffected.