Sensitive-data exfiltration via Mermaid remote-image fetches
Published Aug 1, 2025 · Updated Aug 4, 2025
Information disclosure in Anysphere Cursor before 1.3 allows remote attackers to exfiltrate sensitive data through Mermaid image fetches. The chat renderer permits Mermaid diagrams to embed remote images and fetches their URLs without removing attacker-controlled references. Exploitation requires prompt injection through malicious web content, an uploaded image, or source code that causes a diagram to include an attacker-controlled URL.
Summary
What happened
Information disclosure in Anysphere Cursor before 1.3 allows remote attackers to exfiltrate sensitive data through Mermaid image fetches. The chat renderer permits Mermaid diagrams to embed remote images and fetches their URLs without removing attacker-controlled references. Exploitation requires prompt injection through malicious web content, an uploaded image, or source code that causes a diagram to include an attacker-controlled URL.
The record
- CVE
- CVE-2025-54132
- Published
- Aug 1, 2025
- Updated
- Aug 4, 2025
- Vendor
- Anysphere
- Product
- Cursor
- Classifications
- CWE-918, T1048
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 1, 2025CVE publishedPublication date reported by the CVE source.
- Aug 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 1.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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