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CVE-2026-123014
iTerm2 before 3.7.7beta2 has an argument injection vulnerability in the x-man-page: URL handler, allowing an attacker to execute arbitrary commands with the privileges of the logged-in user by inducing the user to open a crafted URL in iTerm2. Percent-encoded NUL characters survive input sanitization and are subsequently converted to whitespace during command-line parsing, allowing injection of additional arguments to /usr/bin/man. An attacker can inject the -P option to select an attacker-controlled pager command. NOTE: this issue exists because of an incomplete fix for CVE-2023-46321.
8.7 HIGHEPSS 0.47%Not in KEVNVD: Received
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.7 | HIGH | 4.0mitre (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Details
- CVE ID
- CVE-2026-123014
- Status
- Received
- Assigner (CNA)
- mitre
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 06:17 UTC
- Weaknesses
- CWE-88 · Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Products
As published by the CNA in the CVE record.
iTerm2iTerm21 version range
- before 3.7.7beta2