CVE-2026-8666
Last modified
CVE-2026-8666 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. OS Command Injection vulnerability in the traceroute action of Rapid7 InsightConnect Traceroute Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host, port, max_ttl, count, or time_out request parameters due to insufficient input validation when constructing shell commands.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
OS Command Injection vulnerability in the traceroute action of Rapid7 InsightConnect Traceroute Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host, port, max_ttl, count, or time_out request parameters due to insufficient input validation when constructing shell commands.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rapid7 | Insightconnect Traceroute | < 1.0.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-8666?
How severe is CVE-2026-8666?
How do I fix CVE-2026-8666?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-8660OS Command Injection vulnerability in the ping action of Rap…9.8
- CVE-2026-8661Server-Side Request Forgery in the markdown_to_pdf action of…4.8
- CVE-2026-8662Path Traversal vulnerability in the create_archive function …4.3
- CVE-2026-8663OS Command Injection vulnerability in Rapid7 InsightConnect …8.8
- CVE-2026-8664OS Command Injection vulnerability in Rapid7 InsightConnect …8.8
- CVE-2026-8665OS Command Injection vulnerability in the TR action of Rapid…9.8
- CVE-2026-8667GitLab has remediated an issue in GitLab CE/EE affecting all…4.3
- CVE-2026-8668A static credential embedded in Chef 360 prior to v1.7.0 per…2.3
- CVE-2026-8669Imager versions through 1.030 for Perl allow a heap out of b…6.5
- CVE-2026-8670Insufficient session expiration vulnerability in syslink sof…9.6
- CVE-2026-8671Insertion of sensitive information into log file vulnerabili…7.5
- CVE-2026-8672Use of default password vulnerability in syslink software AG…5.1
Are you affected by CVE-2026-8666?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST