# CVE-2025-68669: 5ire vulnerable to Remote Code Execution (RCE) via mermaid

> Attackers can execute arbitrary code via malicious Mermaid diagrams in the 5ire AI assistant due to loose security settings in the markdown renderer.

- **Severity:** Critical 9.7 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 23 Dec 2025
- **Updated:** 6 Feb 2026
- **Also known as:** GHSA-5hpf-p8fw-j349

## What is CVE-2025-68669?

CVE-2025-68669 is a critical code injection vulnerability in nanbingxyz 5ire, published on 23 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-68669?

It affects 1 product.


Products: 5ire 5ire.

## How do I fix CVE-2025-68669?

No fix has been published for CVE-2025-68669 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-68669 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-68669 exists.

## Other vulnerabilities in nanbingxyz 5ire

- [CVE-2026-22792](https://insights.sbomify.com/CVE-2026-22792/): 5ire vulnerable to Remote Code Execution (RCE) (critical 9.7)
- [CVE-2026-22793](https://insights.sbomify.com/CVE-2026-22793/): 5ire vulnerable to Remote Code Execution (RCE) via ECharts (critical 9.7)
- [CVE-2025-58357](https://insights.sbomify.com/CVE-2025-58357/): 5ire Chat Message XSS Vulnerability Enables Remote Code Execution (critical 9.7)
- [CVE-2025-47777](https://insights.sbomify.com/CVE-2025-47777/): 5ire Client Vulnerable to Cross-Site Scripting (XSS) and Remote Code Execution (RCE) (critical 9.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-68669 and fix it if it is affected.

What it is: CVE-2025-68669 is a critical code injection vulnerability in nanbingxyz 5ire, published on 23 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-68669 exists.

Affected product: nanbingxyz 5ire. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-68669/ (Markdown: https://insights.sbomify.com/CVE-2025-68669/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-68669
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-68669
- OSV: https://osv.dev/vulnerability/CVE-2025-68669

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-68669/
Summaries are generated and may contain mistakes; the official description above is the record.