How severe is CVE-2026-8660?

CVE-2026-8660 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-8660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8660?

CVE-2026-8660 affects Rapid7 Insightconnect Ping. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8660?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-8660 have an EU (EUVD) identifier?

Yes. CVE-2026-8660 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39157.

When was CVE-2026-8660 published?

CVE-2026-8660 was published on 2026-06-25 and last updated on 2026-06-29.

CVE-2026-8660

CVE-2026-8660 is a high-severity vulnerability in Rapid7 Insightconnect Ping with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39157
Weakness: CWE-78
Affected product: Rapid7 Insightconnect Ping
Published: 2026-06-25
Last modified: 2026-06-29

Description

OS Command Injection vulnerability in the ping action of Rapid7 InsightConnect Ping Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host parameter due to insufficient input validation when constructing shell commands.

Frequently asked questions

What is CVE-2026-8660?: OS Command Injection vulnerability in the ping action of Rapid7 InsightConnect Ping Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host parameter due to insufficient input validation when constructing shell commands.
How severe is CVE-2026-8660?: CVE-2026-8660 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-8660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8660?: CVE-2026-8660 affects Rapid7 Insightconnect Ping. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-8660 have an EU (EUVD) identifier?: Yes. CVE-2026-8660 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39157.
When was CVE-2026-8660 published?: CVE-2026-8660 was published on 2026-06-25 and last updated on 2026-06-29.

References

https://extensions.rapid7.com/extension/ping

Affected products (1)

cpe:2.3:a:rapid7:insightconnect_ping:*:*:*:*:*:rapid7:*:*

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