What is CVE-2026-26268?

CVE-2026-26268 is a high-severity vulnerability in Anysphere Cursor, classified under Missing Authorization. CVSS score: 8.0/10. Published 2026-02-13.

How severe is CVE-2026-26268?

High severity. CVSS v3 base score is 8.0 out of 10.

Is CVE-2026-26268 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Anysphere Cursor

CVE-2026-26268

Cursor is a code editor built for programming with AI. Sandbox escape via writing .git configuration was possible in versions prior to 2.5. A malicious agent (ie prompt injection) could write to improperly protected .git settings, includin…

Vulnerability class: Broken Access Control

EPSS: 0.005 (38.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Anysphere Cursor
Cursor — versions < 2.5

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

dhawaldesai/agentic-ioc-scanner

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-26268?: CVE-2026-26268 is a high-severity vulnerability in Anysphere Cursor, classified under Missing Authorization. CVSS score: 8.0/10. Published 2026-02-13.
How severe is CVE-2026-26268?: High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2026-26268 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.