Vulnerability Description
tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tgstation13 | Tgstation-Server | >= 6.11.0, < 6.12.3 |
Related Weaknesses (CWE)
References
- https://github.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164Patch
- https://github.com/tgstation/tgstation-server/issues/2064Issue Tracking
- https://github.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276Vendor Advisory
FAQ
What is CVE-2025-21611?
CVE-2025-21611 is a vulnerability with a CVSS score of 8.8 (HIGH). tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if...
How severe is CVE-2025-21611?
CVE-2025-21611 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21611?
Check the references section above for vendor advisories and patch information. Affected products include: Tgstation13 Tgstation-Server.