Detections
Analytics
iTerm2 < 3.6.10 / < 3.7.0beta1 Arbitrary Code Execution (CVE-2026-41253)
medium Nessus Plugin ID 307903
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Synopsis
An application installed on the remote macOS host is affected by an arbitrary code execution vulnerability.Description
The version of iTerm2 installed on the remote host is prior to 3.6.10, or prior to 3.7.0beta1. It is, therefore, affected by an arbitrary code execution vulnerability:- 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. This occurs because iTerm2 accepts the SSH conductor protocol from terminal output that does not originate from a legitimate conductor session.
(CVE-2026-41253)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to iTerm2 version 3.6.10 / 3.7.0beta1 or later.See Also
Plugin Details
Severity: Medium
ID: 307903
File Name: iterm2_macos_CVE-2026-41253.nasl
Version: 1.2
Type: Local
Agent: macosx
Family: MacOS X Local Security Checks
Published: 4/21/2026
Updated: 4/23/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.3
CVSS v2
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 4.4
Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:P
CVSS Score Source: CVE-2026-41253
CVSS v3
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 6
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:iterm2:iterm2
Required KB Items: installed_sw/iTerm2, Host/MacOSX/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 4/20/2026
Vulnerability Publication Date: 4/17/2026
Reference Information
CVE: CVE-2026-41253