CVE-2026-31854: fallo de gravedad alta en cursor
Cursor Affected by Arbitrary Code Execution via Prompt Injection and Whitelist Bypass
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.7epss 0.4%
Cursor is a code editor built for programming with AI. Prior to 2.0 ,if a visited website contains maliciously crafted instructions, the model may attempt to follow them in order to “assist” the user. When combined with a bypass of the command whitelist mechanism, such indirect prompt injections could result in commands being executed automatically, without the user’s explicit intent, thereby posing a significant security risk. This vulnerability is fixed in 2.0.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
cursor · cursorCVEs relacionadas — cursor
En el mismo producto, de las más peligrosas a las menos.
CVE-2025-54136HIGHCursor's Modification of MCP Server Definitions Bypasses Manual Re-approvalsEPSS 31.5%CVE-2025-54135HIGHCursor Agent is vulnerable to prompt injection via MCP Special FilesEPSS 2.1%CVE-2025-62354CRITICALCVE-2025-62354EPSS 1.3%CVE-2025-61591HIGHCursor CLI's Cursor Agent MCP OAuth2 Communication is Vulnerable to Remote Code ExecutionEPSS 1.2%CVE-2026-50548CRITICALCursor Desktop sandbox escape via agent-controlled working directoryEPSS 1.0%CVE-2026-50549CRITICALCursor Desktop sandbox escape via symlink and failed path canonicalizationEPSS 1.0%