CVE-2026-41253_CVE-2026-41253

6.9 / 10

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

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.

Basic Information

ID CVE-2026-41253

Source mitre

Published Apr 18, 2026 at 05:27

Modified Apr 18, 2026 at 05:32

Affected Product

Vendor iTerm2

Product iTerm2

Affected Versions iTerm2 iTerm2 0

CWE Classification

CWE-829

References

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    "published": "2026-04-18T05:27:08.202Z",
    "modified": "2026-04-18T05:32:12.583Z",
    "type": "cve",
    "title": "CVE-2026-41253",
    "source": "mitre",
    "references": "https://iterm2.com/downloads.html\nhttps://blog.calif.io/p/mad-bugs-even-cat-readmetxt-is-not\nhttps://github.com/gnachman/iTerm2/commit/a9e745993c2e2cbb30b884a16617cd5495899f86\nhttps://news.ycombinator.com/item?id=47809190",
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