---
id: GHSA-rgqc-3x5p-6gwg
title: >-
  postgres-protocol: Panic decoding a malformed `hstore` value allows denial of
  service
summary: >-
  postgres-protocol: Panic decoding a malformed `hstore` value allows denial of
  service
severity: medium
cwe:
  - CWE-20
  - CWE-248
vendor: postgres-protocol
product: postgres-protocol
ecosystem: rust
affected:
  - postgres-protocol < 0.6.12
patched:
  - postgres-protocol 0.6.12
published: '2026-08-24'
updated: '2026-08-24'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-rgqc-3x5p-6gwg'
references:
  - url: >-
      https://github.com/rust-postgres/rust-postgres/commit/a7cf84b5c46431cbca9d8ff50508c23f446efa7d
  - url: >-
      https://github.com/rust-postgres/rust-postgres/releases/tag/postgres-protocol-v0.6.12
  - url: 'https://rustsec.org/advisories/RUSTSEC-2026-0180.html'
  - url: 'https://github.com/advisories/GHSA-rgqc-3x5p-6gwg'
tags:
  - ghsa
  - rust
ingestedAt: '2026-08-24T20:10:47.198Z'
---

## Overview

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.

## Affected packages

- `postgres-protocol < 0.6.12`

## Remediation

Upgrade to a patched release:

- `postgres-protocol 0.6.12`