# CVE-2026-26268: Cursor sandbox escape via Git hooks

> A malicious AI agent can escape the sandbox by writing to Git hooks, enabling remote code execution without user interaction.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Feb 2026
- **Updated:** 13 Feb 2026

## What is CVE-2026-26268?

CVE-2026-26268 is a high-severity code injection vulnerability in cursor, published on 13 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official 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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-26268?

It affects 1 product.


Products: Anysphere Cursor.

## How do I fix CVE-2026-26268?

No fix has been published for CVE-2026-26268 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-26268 being exploited?

There is no known exploitation of CVE-2026-26268 in the wild and no public exploit code.

Public exploit code:

- IOC scanner for agentic AI coding tools — detects Mini Shai-Hulud, Gemini CLI RCE, Cursor CVE-2026-26268, and DPRK PromptMink. (github_poc): https://github.com/dhawaldesai/agentic-ioc-scanner

## Other vulnerabilities in cursor

- [CVE-2026-50548](https://insights.sbomify.com/CVE-2026-50548/): Cursor Desktop sandbox escape via agent-controlled working directory (critical 9.3)
- [CVE-2026-50549](https://insights.sbomify.com/CVE-2026-50549/): Cursor Desktop sandbox escape via symlink and failed path canonicalization (critical 9.3)
- [CVE-2025-64106](https://insights.sbomify.com/CVE-2025-64106/): Cursor: Speedbump Modal Bypass in MCP Server Deep-Link (high 8.8)
- [CVE-2025-64107](https://insights.sbomify.com/CVE-2025-64107/): Cursor is Vulnerable to Path Manipulation Using Backslashes on Windows (high 8.8)
- [CVE-2025-64108](https://insights.sbomify.com/CVE-2025-64108/): Cursor's Sensitive File Modification can Lead to NTFS Path Quirks (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-26268 and fix it if it is affected.

What it is: CVE-2026-26268 is a high-severity code injection vulnerability in cursor, published on 13 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-26268 in the wild and no public exploit code.

Affected product: cursor. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-26268/ (Markdown: https://insights.sbomify.com/CVE-2026-26268/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-26268
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-26268
- OSV: https://osv.dev/vulnerability/CVE-2026-26268

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-26268/
Summaries are generated and may contain mistakes; the official description above is the record.