CVE-2026-41253
Medium
Low
Medium
High
Critical
6.9
CVSS Score
Vulnerability 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.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack Vector
L
Attack Complexity
H
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
H
Integrity
H
Availability
L
References & Resources
Severity Details
6.9
out of 10.0
Medium
Weakness Type (CWE)
CWE-829
Inclusion of Functionality from Untrusted Control Sphere
- Description
- The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.
- Typical Severity
- Medium
- Abstraction Level
- Base
Key Information
- Published Date
- April 18, 2026
