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Sunday, 13 September 2026
8 agent hacks today▲ 7 vs yesterday (1)
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Incident database

CVE-2026-26268: Cursor sandbox escape via writable .git configuration

A vulnerability in Cursor versions prior to 2.5 allowed a malicious agent, e.g. via prompt injection, to write to improperly protected .git settings including git hooks, enabling out-of-sandbox remote code execution without user interaction when Git next ran those commands. The issue was fixed in version 2.5.

Disclosed 13 February 2026 · Record updated 13 September 2026

Impact

Sandbox escape leading to code execution outside the agent sandbox on affected developer machines running Cursor versions before 2.5; no user interaction required as Git executes hook commands automatically.

Our coverage

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Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-26268