CVE-2025-15099

HIGH

Sim < 0.5.27 - Authentication Bypass

Title source: rule

Description

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 leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is e359dc2946b12ed5e45a0ec9c95ecf91bd18502a. Applying a patch is the recommended action to fix this issue.

Scores

CVSS v3 7.3
EPSS 0.0008
EPSS Percentile 23.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Classification

CWE
CWE-287
Status published

Affected Products (1)

sim/sim < 0.5.27

Timeline

Published Dec 26, 2025
Tracked Since Feb 18, 2026