CVE-2025-58766

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 17, 2025

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated May 21, 2026
Patch available. Sources: github.
github Patch Available

Remote Code Execution via Preview Window · Advisory · dyad-sh/dyad · GitHub

https://github.com/dyad-sh/dyad/security/advisories/GHSA-7fxm-c5xx-7vpq
generic

fix: hide <dyad-command> tags from generated text output (#945) (#1162) · dyad-sh/dyad@ebcf89e · GitHub

https://github.com/dyad-sh/dyad/commit/ebcf89ee6cead83a33add5ef1e19c8d4f9b4ce9b
generic

Enable iframe sandbox (#1178) · dyad-sh/dyad@1c0255a · GitHub

https://github.com/dyad-sh/dyad/commit/1c0255ab126d3b38ae9e78b17cdab9a07e5f0185

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 136 total refreshes for this CVE.

  1. 2026-08-07 16:26 UTCEPSS rescore
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  74. 2026-06-02 14:32 UTCOSV refresh
  75. 2026-06-01 13:51 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-58766?
CVE-2025-58766 is a critical vulnerability published on September 17, 2025. 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…
When was CVE-2025-58766 disclosed?
CVE-2025-58766 was first published in the National Vulnerability Database on September 17, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-58766 actively exploited?
CVE-2025-58766 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.9% of all scored CVEs.
What is the CVSS score of CVE-2025-58766?
CVE-2025-58766 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2025-58766?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-58766, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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