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CVE-2025-61591 affects Cursor, an AI-assisted code editor. In Cursor version 1.7 and earlier, when the Model Context Protocol (MCP) uses OAuth authentication with an untrusted MCP server, a malicious server can impersonate a legitimate MCP endpoint and return crafted command content during the interaction flow. This untrusted, attacker-controlled input is insufficiently neutralized before being acted on by the agent, resulting in command injection. If this condition is chained with use of an untrusted MCP service over OAuth, the injected commands may be executed on the host system, leading to potential remote code execution in the context of the logged-in user.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.