CVSS 4.0
8.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-123014
High (8.7).
iTerm2 before 3.7.7beta2 has an argument injection vulnerability in the x-man-page: URL handler, allowing an attacker to execute arbitrary commands with the privileges of the logged-in user by inducing the user to open a crafted URL in iTerm2. Percent-encoded NUL characters survive input sanitization and are subsequently converted to whitespace during command-line parsing, allowing injection of additional arguments to /usr/bin/man. An attacker can inject the -P option to select an attacker-controlled pager command. NOTE: this issue exists because of an incomplete fix for CVE-2023-46321.
Severity
- CWE
- CWE-88 Improper Neutralization of Argument Delimiters in a Command (Argument Injection)
- OWASP Top 10
- A05:2025 Injection
- Published
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-123014 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-123014?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-123014?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-123014 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| iTerm2 | before 3.7.7beta2 |
Attack patterns (CAPEC)
- CAPEC-41 Using Meta-characters in E-mail Headers to Inject Malicious Payloads Likelihood: High · Severity: High
- CAPEC-88 OS Command Injection Likelihood: High · Severity: High
- CAPEC-137 Parameter Injection Likelihood: Medium · Severity: Medium
- CAPEC-174 Flash Parameter Injection Likelihood: High · Severity: Medium
- CAPEC-460 HTTP Parameter Pollution (HPP) Severity: Medium
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.