GodotSteam 4.17 through 4.23.2 trusts the peer value of 1 to mean that a player is the server.
CVE-2026-123017
GodotSteam 4.17 through 4.23.2 trusts the peer value of 1 to mean that a player is the server. A grantgold(1000000) call can be forged.
Assessment
- CVSS
- 6.5 (v3.1)
- Severity
- Medium
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 5 November 2026
- Last updated
- 5 November 2026
- Affected
- godotsteam · GodotSteam
- Assigner
- mitre
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
At the source
References
- https://axeghost.offprint.app/a/3mzhxoqpnh423-any-networked-co-player-can-act-as-the-server-in-a-godotsteam-game
- https://github.com/bitbutter/godot-security-pocs/tree/main/2026-11-godotsteam-peer-id-claim
- https://codeberg.org/godotsteam/godotsteam
- https://www.openwall.com/lists/oss-security/2026/11/04/11
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