Reported

June 12, 2026

Issued

June 12, 2026

Package

postgres-protocol (crates.io)

Type

Vulnerability

Categories

• denial-of-service

Keywords

#hstore

References

• https://github.com/rust-postgres/rust-postgres/commit/a7cf84b5c46431cbca9d8ff50508c23f446efa7d

CVSS Score

6.9 MEDIUM

CVSS Details

Attack Complexity

Low

Attack Requirements

None

Attack Vector

Network

Privileges Required

None

Availability Impact to the Subsequent System

None

Confidentiality Impact to the Subsequent System

None

Integrity Impact to the Subsequent System

None

User Interaction

None

Availability Impact to the Vulnerable System

Low

Confidentiality Impact to the Vulnerable System

None

Integrity Impact to the Vulnerable System

None

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Patched

• >=0.6.12

Affected Functions

Version

postgres_protocol::types::hstore_from_sql

• <0.6.12

Description

A malicious or compromised server can return a binary hstore value with an invalid internal length field, causing the client to panic while decoding it.

Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.

Advisory available under CC0-1.0 license.