CVE-2026-31854

HIGH

Cursor < 2.0 - OS Command Injection via Indirect Prompt Injection

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0028
EPSS Percentile 19.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (1)
anysphere/cursor < 2.0
Published Mar 11, 2026
Tracked Since Mar 12, 2026