Critical severity · published Feb 13, 2026
CVE-2026-26268
Cursor sandbox escape via Git hooks
9.9
CVSS
0.7%
EPSS
No
On KEV
Description
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, including git hooks, which may cause out-of-sandbox RCE next time they are triggered. No user interaction was required as Git executes these commands automatically. Fixed in version 2.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CU
cursor · cursor
< 2.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26268
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26268
Vendor Advisory
https://github.com/cursor/cursor/security/advisories/GHSA-8pcm-8jpx-hv8r
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