Description
5ire is a cross-platform desktop artificial intelligence assistant and model context protocol client. In versions 0.15.2 and prior, an RCE vulnerability exists in useMarkdown.ts, where the markdown-it-mermaid plugin is initialized with securityLevel: 'loose'. This configuration explicitly permits the rendering of HTML tags within Mermaid diagram nodes. This issue has not been patched at time of publication.
Affected products
5ire: 5ire
References5
- github.com/nanbingxyz/5ire/security/advisories/GHSA-5hpf-p8fw-j… ExploitVendor Advisory
- github.com/nanbingxyz/5ire/security/advisories/GHSA-5hpf-p8fw-j… ExploitVendor Advisory
- github.com/nanbingxyz/5ire/blob/c40d05a2b546094789fc727daa5383b… Product
- github.com/nanbingxyz/5ire/commit/1fbe40d0bfbfe215370d45b9af856…
- github.com/nanbingxyz/5ire/releases/tag/v0.15.2 Release Notes
Metrics
- CVSS 3.1
-
9.6
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 41 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.