# CVE-2026-41253

> Vulnerability · severity: **MEDIUM** (CVSS 6.9).

## Description

In iTerm2 through 3.6.9, displaying a .txt file can cause code execution via DCS 2000p and OSC 135 data, if the working directory contains a malicious file whose name is valid output from the conductor encoding path, such as a pathname with an initial ace/c+ substring, aka "hypothetical in-band signaling abuse." This occurs because iTerm2 accepts the SSH conductor protocol from terminal output that does not originate from a legitimate conductor session.

## Key facts

- **CVE ID:** CVE-2026-41253
- **Published:** 2026-04-18
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.9
- **CWE codes:** CWE-829

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41253

## Citation

> AI Analytics. CVE-2026-41253. Retrieved 2026-07-09 from https://api.ai-analytics.org/cve/CVE-2026-41253. Derived from NIST NVD. Licensed CC0.

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