CVE-2026-31854

Affects: prompt injection

CVSS: HIGH · 8.8v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2026-03-11
Weakness: CWE-78
Source: nvd.nist.gov/vuln/detail/CVE-2026-31854

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

https://github.com/cursor/cursor/security/advisories/GHSA-hf2x-r83r-qw5q

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