# CVE-2025-54132: Cursor's Mermaid Diagram Tool is Vulnerable to an Arbitrary Image Fetch

> CVE-2025-54132: Cursor's Mermaid Diagram Tool is Vulnerable to an Arbitrary Image Fetch. CVSS 4.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-54132
Last updated: 2026-06-17T09:39:30Z

- Published: 2025-08-01 23:05 UTC · Updated: 2026-06-17 09:39 UTC · Assigner: GitHub\_M
- CVSS: 4.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
- EPSS: 0.38%, 32th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-918

## Description

Cursor is a code editor built for programming with AI. In versions below 1.3, Mermaid (which is used to render diagrams) allows embedding images which then get rendered by Cursor in the chat box. An attacker can use this to exfiltrate sensitive information to a third-party attacker controlled server through an image fetch after successfully performing a prompt injection. A malicious model (or hallucination/backdoor) might also trigger this exploit at will. This issue requires prompt injection from malicious data (web, image upload, source code) in order to exploit. In that case, it can send sensitive information to an attacker-controlled external server. This is fixed in version 1.3.

## Affected vendors and products

- cursor: cursor

## Tracked companies

- [Cursor](https://rewindex.com/company/cursor.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-54132)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-54132)
- [https://github.com/cursor/cursor/security/advisories/GHSA-43wj-mwcc-x93p](https://github.com/cursor/cursor/security/advisories/GHSA-43wj-mwcc-x93p)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-54132 · Markdown: https://rewindex.com/cve/CVE-2025-54132.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-54132 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:43.756Z