The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
References 4
https://github.com/golang/vulndb/issues/4518
security@golang.org
https://github.com/jackc/pgx/issues/2507
security@golang.org
https://pkg.go.dev/vuln/GO-2026-4518
security@golang.org
https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postg…
134c704f-9b21-4f2e-91b3-4a467353bcc0