RCE in Dyad-Sh Dyad

CVE-2025-58766

Dyad is a local AI app builder. A critical security vulnerability has been discovered that affected Dyad v0.19.0 and earlier versions that allows attackers to execute arbitrary code on users' systems. The vulnerability affects the application's preview window functionality and can bypass Docker container protections. An attacker can craft web content that automatically executes when the preview loads. The malicious content can break out of the application's security boundaries and gain control of the system. This has been fixed in Dyad v0.20.0 and later.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-58766: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-58766?
CVE-2025-58766 is a critical-severity vulnerability in Dyad-Sh Dyad, classified under Code Injection. CVSS score: 9.0/10. Published 2025-09-17.
How severe is CVE-2025-58766?
Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2025-58766 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.