CVE-2026-123017

medium

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.

References

https://www.openwall.com/lists/oss-security/2026/11/04/11

https://github.com/bitbutter/godot-security-pocs/tree/main/2026-11-godotsteam-peer-id-claim

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-117358

https://codeberg.org/godotsteam/godotsteam

https://axeghost.offprint.app/a/3mzhxoqpnh423-any-networked-co-player-can-act-as-the-server-in-a-godotsteam-game

Details

Source: Mitre, NVD

Published: 2026-11-05

Updated: 2026-11-05

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00258