---
id: "CVE-2026-123017"
kind: "vulnerability"
aliases: ["CVE-2026-123017"]
title: "GodotSteam: a peer value of 1 lets a player forge server-only gold grants"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["godot", "godotsteam", "multiplayer-games", "package", "steam"]
not_affected_if: ["no-server-rpcs", "single-player", "versions-outside-range"]
published_at: "2026-11-05T07:17:24+00:00"
first_seen_at: "2026-11-05T07:37:46+00:00"
updated_at: "2026-11-05T07:39:58+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123017", "first_seen_at": "2026-11-05T07:37:46+00:00"}]
exploit_sources: []
---

# GodotSteam: a peer value of 1 lets a player forge server-only gold grants

GodotSteam, a Steam integration plugin for the Godot game engine, treats a peer ID of 1 as the game server. A connected player can therefore send a forged grant_gold(1000000) call and be credited with that amount.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Look for the GodotSteam addon in the project's `addons` folder and read its version.
- Search the game's networking code for `grant_gold` or other server-only RPCs that do not verify the sender.

## Fix

- GodotSteam `4.23.2` and earlier in the affected range (4.17 through 4.23.2) are vulnerable; the sources do not name a fixed version.

## Timeline

- 2026-11-05T07:37:46+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123017

## From the sources

GodotSteam 4.17 through 4.23.2 trusts the peer value of 1 to mean that a player is the server. A grant_gold(1000000) call can be forged.

---

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