Auth bypass in Tgstation Tgstation-server
CVE-2025-21611
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 enable…
EPSS: 0.005 (37.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Tgstation Tgstation-server — versions >= 6.11.0, < 6.12.3
- Tgstation13 Tgstation-server
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-21611?
- CVE-2025-21611 is a high-severity vulnerability in Tgstation Tgstation-server, classified under Improper Authorization. CVSS score: 8.8/10. Published 2025-01-06.
- How severe is CVE-2025-21611?
- High severity. CVSS v3 base score is 8.8 out of 10.