CVE-2026-123017
Summary
| CVE | CVE-2026-123017 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-05 07:17:24 UTC |
| Updated | 2026-11-05 07:17:24 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Problem Types: CWE-290 | CWE-290 CWE-290 Authentication Bypass by Spoofing
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| 3.1 | CNA | CVSS | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Godotsteam | GodotSteam | affected 4.17.0 4.23.2 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/bitbutter/godot-security-pocs/tree/main/2026-11-godotsteam-pe... | [email protected] | github.com | |
| axeghost.offprint.app/a/3mzhxoqpnh423-any-networked-co-player-can-act-as-the-server... | [email protected] | axeghost.offprint.app | |
| www.openwall.com/lists/oss-security/2026/11/04/11 | [email protected] | www.openwall.com | |
| codeberg.org/godotsteam/godotsteam | [email protected] | codeberg.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Workarounds
CNA: Game-side only: on the plugin's peer_connected signal for peer ID 1, compare Steam.get_steam_id_for_peer_id(1) with the expected server Steam ID (the lobby owner, or the ID passed to create_client) and close the multiplayer peer on a mismatch. The guard ships in the reproduction kit. No plugin setting rejects a false claim.
There are currently no legacy QID mappings associated with this CVE.