CVEvulnerability
CVE-2026-41253
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.9 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-829
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.
Affected configurations
• iterm2 iterm2 (<= 3.6.9)
Related
Weakness · CWE (1)
- CWE-829 Inclusion of Functionality from Untrusted Control Sphere weakness
References
- https://blog.calif.io/p/mad-bugs-even-cat-readmetxt-is-not Exploit, Third Party Advisory
- https://github.com/gnachman/iTerm2/commit/a9e745993c2e2cbb30b884a16617cd5495899f86 Patch
- https://iterm2.com/downloads.html Product
- https://news.ycombinator.com/item?id=47809190 Issue Tracking