Auth bypass in Sim

CVE-2025-15099

A vulnerability was identified in simstudioai sim up to 0.5.27. This vulnerability affects unknown code of the file apps/sim/lib/auth/internal.ts of the component CRON Secret Handler. The manipulation of the argument INTERNAL_API_SECRET le…

Vulnerability class: Broken Authentication

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-15099?
CVE-2025-15099 is a high-severity vulnerability in Sim, classified under Improper Authentication. CVSS score: 7.3/10. Published 2025-12-26.
How severe is CVE-2025-15099?
High severity. CVSS v3 base score is 7.3 out of 10.