PatchTheCVECVE-2025-15099: A vulnerability was identified in simstudioai sim up to 0.5.27
CVE-2025-15099 is a high-severity flaw (CVSS 7.3) affecting sim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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. Apply
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.3 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.8% (top 44%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2025-12-26 |
| Last modified | 2026-10-07 |
Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-15099?
sim: upgrade to newer than 0.5.27. Exact commands for each OS are on this page.
Is CVE-2025-15099 being exploited?
CVE-2025-15099 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-15099 affect?
CVE-2025-15099 affects sim. Severity is high (CVSS 7.3). 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 lea
How urgent is CVE-2025-15099?
Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
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