iTerm2 before 3.7.7beta2 has an argument injection vulnerability in the x-man-page: URL handler, allowing an attacker
Affects iterm2Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.7 High : upgrade to 3.7.7beta2 soon.
Data as of 5 Nov 2026, 07:26 UTC
Thin evidence
One scorer or none| CNA (mitre) | CVSS 4.0 | 8.7 |
|---|
- Patch
- Available – fixed in 3.7.7beta2
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade gnachman/iterm2 to 3.7.7beta2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubgnachman/iterm2pkg:github/gnachman/iterm2Other threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fixed version 3.7.7beta2 or later addresses this vulnerability. Users should upgrade to iTerm2 version 3.7.7beta2 or later to remediate this issue. No other mitigations or workarounds are indicated in the provided data.
Description
iTerm2 versions before 3.7.7beta2 contain an argument injection vulnerability in the x-man-page URL handler. This flaw allows an attacker to execute arbitrary commands with the privileges of the logged-in user by tricking the user into opening a specially crafted URL. The vulnerability arises because percent-encoded NUL characters bypass input sanitization and are converted to whitespace during command-line parsing, enabling injection of additional arguments to the /usr/bin/man command, including the -P option to specify a malicious pager command. This issue is a regression due to an incomplete fix for CVE-2023-46321.
References
- nvd.nist.gov/vuln/detail/CVE-2026-123014 (opens in a new tab)
- gitlab.com/gnachman/iterm2/-/commit/314ba43920dbce08808c032e89966918090bdf8e (opens in a new tab)
- gitlab.com/gnachman/iterm2/-/commit/f29420ae4d3e0f986ee24ea286885d32af58175a (opens in a new tab)
- iterm2.com/downloads.html (opens in a new tab)